Hex Nuts - Page 4 | Raptor Supplies United Kingdom
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Hex Nuts

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Hex nuts are metal fasteners having six sides. They can be used with bolts, washers, anchors, studs, threaded rods & screws. They are designed to fasten two or more wood / metal parts or...Read more

GRAINGER -

Hex Nut 3/4 Carbon Steel

StyleModelFinishGradeRockwell HardnessPrice (inc. VAT)
AU04225.075.0001Hot Dipped GalvanizedDHC24 to C38£16.97
BU04025.075.0001PlainCB78 to C38£9.12
CU04026.075.0001PlainA563C24 to C38£12.62
APPROVED VENDOR -

A2 Stainless Steel (Comparable to 18-8 Stainless Steel) Hex Nut, Plain Finish

StyleModelDia./Thread SizeHeightWidthPrice (inc. VAT)
AM51080.360.0001-29mm55mm£15.66
BM51080.080.0001M8 x 1.256.5mm13mm£5.77
CM51080.120.0001M12 x 1.7510mm19mm£8.47
DM51080.160.0001M16 x 213mm24mm£6.88
EM51080.200.0001M20 x 2.516mm30mm£7.05
FABORY -

Hex Nuts

StyleModelBasic MaterialDia./Thread SizeFastener FinishFinishGradeHeightItemStylePrice (inc. VAT)
AU12025.125.0001Carbon Steel1 1/4"-12PlainPlain--Hex LocknutSlotted Hex Nut£18.76
BB12025.125.0001Carbon Steel1 1/4"-12PlainPlain-1 1/16"Hex LocknutHex Slotted Nut-Regular£322.55
CL51080.080.0001Stainless SteelM8x1.25PlainPlainA26.5 mmHex NutHex Nut-
RFQ
DB55081.050.0001Stainless Steel1/2"-13PlainPlain316-Hex NutHex Nut - Heavy£358.66
EB55081.062.0001Stainless Steel5/8"-11PlainPlain316-Hex NutHex Nut - Heavy-
RFQ
FB55081.087.0001Stainless Steel7/8"-9PlainPlain316-Hex NutHex Nut - Heavy£348.06
GB55081.150.0001Stainless Steel1 1/2"-6PlainPlain316-Hex NutHex Nut - Heavy£739.06
HB51081.075.0001Stainless Steel3/4"-10PlainPlain18-847/64"Hex NutHex Nut - Heavy-
RFQ
IL51080.016.0001Stainless SteelM1.6x0.35PlainPlainA21.3 mmHex NutHex Nut£5,006.69
JL51080.020.0001Stainless SteelM2x0.4PlainPlainA21.6 mmHex NutHex Nut£4,363.76
KL51080.030.0001Stainless SteelM3x0.5PlainPlainA22.4 mmHex NutHex Nut£1,892.91
LL51080.050.0001Stainless SteelM5x0.8PlainPlainA24.0 mmHex NutHex Nut£333.73
ML51090.100.0001Stainless SteelM10x1.5PlainPlainA25.0 mmHex NutThin Nut£415.88
NL51080.360.0001Stainless SteelM36x4PlainPlainA229.0 mmHex NutHex Nut£514.58
OB51081.025.0001Stainless Steel1/4"-20PlainPlain18-815/64"Hex NutHex Nut - Heavy£279.29
PU22384.112.0001Stainless Steel1 1/8"-8PlainPlainGrade 8M-Hex NutHex Nut - Heavy£408.96
QL51090.140.0001Stainless SteelM14x2PlainPlainA27.0 mmHex NutThin Nut£546.46
RU51080.050.0001Stainless Steel1/2"-13PlainPlain18-87/16"Hex NutHex Nut£10.90
SL51090.200.0001Stainless SteelM20x2.5PlainPlainA210.0 mmHex NutThin Nut£465.92
TL55080.030.0001Stainless SteelM3x0.5PlainPlainA42.4 mmHex NutHex Nut£610.06
UU55080.031.0001Stainless Steel5/16"-18PlainPlain3161/4"Hex NutHex Nut£9.15
VL55080.050.0001Stainless SteelM5x0.8PlainPlainA44.0 mmHex NutHex Nut£675.49
WL55080.200.0001Stainless SteelM20x2.5PlainPlainA416.0 mmHex NutHex Nut£335.73
XL55080.240.0001Stainless SteelM24x3PlainPlainA419.0 mmHex NutHex Nut£557.98
YB51081.037.0001Stainless Steel3/8"-16PlainPlain18-823/64"Hex NutHex Nut - Heavy£320.31
FOREVERBOLT -

Hex Nuts

StyleModelDia./Thread SizeGradeHeightStyleSystem of MeasurementThread TypeWidthWidth Across FlatsPrice (inc. VAT)
AFBHEXN632P100#6-3218-87/64"Hex NutInchUNC (Coarse)-5/16"£74.79
BFB3HEXN632P50#6-323167/64"Hex NutInchUNC (Coarse)-5/16"£56.86
CFBHEXN832P100#8-3218-87/64"Hex NutInchUNC (Coarse)-5/16"£75.04
DFB3HEXN832P50#8-323167/64"Hex NutInchUNC (Coarse)-5/16"£60.44
EFBHEXN1024P100#10-2418-81/8"Hex NutInchUNC (Coarse)-3/8"£75.07
FFB3HEXN1024P50#10-243161/8"Hex NutInchUNC (Coarse)-3/8"£62.12
GFB3HEXN18P51-831655/64"Hex NutInchUNC (Coarse)-1 5/8"£45.38
HFBHEXN18P51-818-855/64"Hex NutInchUNC (Coarse)-1 5/8"£37.31
IFBHEXN18H1-818-863/64"HeavyInchUNC (Coarse)1.625"-£16.48
JFBHEXN1213P251/2"-1318-87/16"Hex NutInchUNC (Coarse)-3/4"£43.58
KFB3HEXN1213P251/2"-133167/16"Hex NutInchUNC (Coarse)-3/4"£52.53
LFBHEXN1420P501/4"-20-7/32"HeavyInchUNC (Coarse)7/16"-£48.60
MFB3HEXN1420P501/4"-203167/32"Hex NutInchUNC (Coarse)-7/16"£47.10
NFBHEXN3410P203/4"-1018-841/64"Hex NutInchUNC (Coarse)-1 1/8"£71.18
OFB3HEXN3410P203/4"-1031641/64"Hex NutInchUNC (Coarse)-1 1/8"£90.24
PFB3HEXN3816P503/8"-1631621/64"Hex NutInchUNC (Coarse)-9/16"£65.32
QFBHEXN3816P503/8"-1618-821/64"Hex NutInchUNC (Coarse)-9/16"£60.88
RFBHEXN5811P255/8"-1118-835/64"Hex NutInchUNC (Coarse)-15/16"£57.62
SFB3HEXN5811P255/8"-1131635/64"Hex NutInchUNC (Coarse)-15/16"£72.15
TFBHEXN51618P505/16"-18-17/64"HeavyInchUNC (Coarse)1/2"-£61.43
UFB3HEXN516P505/16"-1831617/64"Hex NutInchUNC (Coarse)-1/2"£59.89
VFBHEXN789P57/8"-918-83/4"Hex NutInchUNC (Coarse)-1 5/16"£29.28
WFB3HEXN789P57/8"-93163/4"Hex NutInchUNC (Coarse)-1 5/16"£34.51
XFB3HEXN71614P257/16"-143163/8"Hex NutInchUNC (Coarse)-11/16"£44.64
YFBHEXN71614P257/16"-1418-83/8"Hex NutInchUNC (Coarse)-11/16"£39.18
MICRO PLASTICS -

Hex Nuts

StyleModelDia./Thread SizeFinishHeightSystem of MeasurementThread SizeThread TypeWidthPrice (inc. VAT)
A0487509HN-Natural3/4"Inch7/8-9UNC1 9/32"£6.64
B0487509HNB-Black3/4"Inch7/8-9UNC1 9/32"£0.72
C0400256HN#2-56Natural5/64"Inch-UNC3/16"£5.26
D0400440HN#4-40Natural7/64"Inch-UNC1/4"£5.20
E0400632HNB#6-32Black1/8"Inch-UNC5/16"-
RFQ
F0400632HN#6-32Natural1/8"Inch-UNC5/16"£4.69
A0400832HN#8-32Natural1/8"Inch-UNC1/3"£5.92
G0401024HNB#10-24Black9/64"Inch-UNC23/64"£1.37
H0401024HN#10-24Natural9/64"Inch-UNC23/64"£5.35
A0401032HN#10-32Natural9/64"Inch-UNF23/64"£5.35
I0410008HN1"-8Natural7/8"Inch-UNC1 15/32"£15.54
J0450013HN1/2"-13Natural7/16"Inch-UNC3/4"£7.89
K0425020HN1/4"-20Natural15/64"Inch-UNC27/64"£5.07
B0425020HNB1/4"-20Black15/64"Inch-UNC27/64"-
RFQ
L0425028HN1/4"-28Natural15/64"Inch-UNF27/64"£6.97
M0475010HN3/4"-10Natural41/64"Inch-UNC1 3/32"-
RFQ
B0475010HNB3/4"-10Natural41/64"Inch-UNC1 3/32"-
RFQ
A0437516HN3/8"-16Natural1/3"Inch-UNC9/16"£4.49
N0437516HNB3/8"-16Black1/3"Inch-UNC9/16"-
RFQ
O0462511HN5/8"-11Natural35/64"Inch-UNC59/64"£8.58
P0462511HNB5/8"-11Black35/64"Inch-UNC59/64"£2.02
Q0431218HNB5/16"-18Black17/64"Inch-UNC1/2"-
RFQ
A0431218HN5/16"-18Natural17/64"Inch-UNC1/2"£4.17
R04M020040HNM2-0.4Natural1.2mmMetricM2 x 0.4Metric3.9mm£6.91
S04M030050HNM3 x 0.5Natural2.2mmMetricM3 x 0.5Metric5.4mm£6.16
ARMOR COAT -

Hex Nuts

StyleModelDia./Thread SizeHeightWidthPrice (inc. VAT)
AUST2360191/2"-137/16"3/4"£29.22
BUST2360111/4"-207/32"7/16"£10.98
CUST2360233/4"-1041/64"1.125"£22.42
DUST2360153/8"-1621/64"9/16"£27.50
EUST2360215/8"-1135/64"15/16"£30.01
FUST2360135/16"-1817/64"1/2"£18.49
GUST2360177/16"-143/8"11/16"£22.91
EARNEST -

Coil Hex Nuts

StyleModelDia./Thread SizeHeightThread SizeWidthPrice (inc. VAT)
A300907G1 1/4 to 3 1/2"1.25"1 1/4-3 1/22"£59.61
B300901G1/2"-67/16"1/2-67/8"£32.89
C300903G3/4"-4-1/25/8"3/4-4 1/21.125"£31.11
APPROVED VENDOR -

Hex Nut Full 0.45, 5 mm

StyleModelDia./Thread SizeThread SizePrice (inc. VAT)
A6CA67M2.5-0.45M2.5 x 0.45£3.07
B6CA68M2.6-0.45M2.6 x 0.45£2.63
APPROVED VENDOR -

A4 Stainless Steel Hex Nut

StyleModelDia./Thread SizeHeightWidthPrice (inc. VAT)
AM55080.100.0001M10 x 1.58mm17mm£20.31
BM55080.120.0001M12 x 1.7510mm19mm£14.69
BM55080.140.0001M14 x 211mm22mm£21.02
BM55080.160.0001M16 x 213mm24mm£9.20
CM55080.180.0001M18 x 2.515mm27mm£22.86
DM55080.200.0001M20 x 2.516mm30mm£11.73
EM55080.240.0001M24 x 319mm36mm£31.72
BM55080.270.0001M27 x 322mm41mm£13.88
FM55080.300.0001M30 x 3.524mm46mm£20.17
BM55080.330.0001M33-3.526mm50mm£17.21
GRAINGER -

Steel Hex Nut, Zinc Finish

StyleModelDia./Thread SizeFinishHeightThread TypeWidthPrice (inc. VAT)
AM01320.030.0001M3 x 0.5Zinc Yellow2.4mmMetric5.5mm£4.40
BM01320.040.0001M4 x 0.7Zinc Yellow3.2mmMetric7mm£5.59
AM01120.040.0075M4-0.75Plain3.2mmMetric Fine7mm£541.55
CM01320.050.0001M5 x 0.8Zinc Yellow4mmMetric8mm£5.50
DM01320.060.0001M6 x 1Zinc Yellow5mmMetric10mm£4.04
AM01320.070.0001M7 x 1Zinc Yellow5.5mmMetric11mm£12.58
EM01560.080.0001M8 x 1.25Hot Dipped Galvanized6.5mmMetric13mm£12.52
FM01320.080.0001M8 x 1.25Zinc Yellow6.5mmMetric13mm£10.15
GM01560.100.0001M10 x 1.5Hot Dipped Galvanized8mmMetric17mm£25.18
HM01320.100.0001M10 x 1.5Zinc Yellow8mmMetric17mm£21.73
IM01560.120.0001M12 x 1.75Hot Dipped Galvanized10mmMetric19mm£10.66
AM01320.120.0001M12 x 1.75Zinc Yellow10mmMetric19mm£19.83
JM01320.140.0001M14 x 2Zinc Yellow11mmMetric22mm£32.38
KM01560.140.0001M14 x 2Hot Dipped Galvanized11mmMetric22mm£24.30
LM01560.160.0001M16 x 2Hot Dipped Galvanized13mmMetric24mm£15.25
AM01320.160.0001M16 x 2Zinc Yellow13mmMetric24mm£15.09
MM01120.160.0100M16-1Plain13mmMetric Fine24mm£27.53
NM01320.180.0001M18 x 2.5Zinc Yellow15mmMetric27mm£26.56
OM01560.180.0001M18 x 2.5Hot Dipped Galvanized15mmMetric27mm£30.19
PM01120.180.0100M18-1Plain15mmMetric Fine27mm£39.94
QM01120.180.0200M18-2Plain15mmMetric Fine27mm£28.87
RM01340.180.0200M18-2Zinc Yellow15mmMetric Fine27mm£9.69
SM01320.200.0001M20 x 2.5Zinc Yellow16mmMetric30mm£12.64
TM01560.200.0001M20 x 2.5Hot Dipped Galvanized16mmMetric30mm£13.15
UM01340.200.0200M20-2Zinc Yellow16mmMetric Fine30mm£10.36
GRAINGER -

Carbon Steel Hex Nut, Plain Finish

StyleModelDia./Thread SizeFinishGradeHeightSystem of MeasurementThread TypeWidthPrice (inc. VAT)
AA01100.100.00011-8PlainGrade 555/64"InchUNC (Coarse)1.5"-
RFQ
BB01100.100.00011-8PlainGrade 555/64"InchUNC (Coarse)1.5"£134.90
CN01100.100.00011-8PlainGrade 555/64"InchUNC (Coarse)1.5"£13.97
DA01300.100.00011-8Zinc-PlatedGrade 555/64"InchUNC (Coarse)1.5"-
RFQ
EN01300.100.00011-8Zinc-PlatedGrade 555/64"InchUNC (Coarse)1.5"£14.51
FN01120.100.00031-14PlainGrade 555/64"InchUNS1.5"£13.80
GN01330.100.00031-14Zinc-PlatedGrade 555/64"InchUNS1.5"£15.15
HA01120.100.00031-14PlainGrade 555/64"InchUNS1.5"£217.23
IA01330.100.00031-14Zinc-PlatedGrade 555/64"InchUNS1.5"£254.07
JN01100.050.00011/2"-13PlainGrade 57/16"InchUNC (Coarse)3/4"£32.25
KB01100.050.00011/2"-13PlainGrade 57/16"InchUNC (Coarse)3/4"£115.77
LA01300.050.00011/2"-13Zinc-PlatedGrade 57/16"InchUNC (Coarse)3/4"£549.18
MN01300.050.00011/2"-13Zinc-PlatedGrade 57/16"InchUNC (Coarse)3/4"£34.35
NA01100.050.00011/2"-13PlainGrade 57/16"InchUNC (Coarse)3/4"£600.72
ON01330.050.00021/2"-20Zinc-PlatedGrade 57/16"InchUNF (Fine)3/4"£20.90
PA01330.050.00021/2"-20Zinc-PlatedGrade 57/16"InchUNF (Fine)3/4"£368.38
QA01120.050.00021/2"-20PlainGrade 57/16"InchUNF (Fine)3/4"£365.30
RN01120.050.00021/2"-20PlainGrade 57/16"InchUNF (Fine)3/4"£19.84
SN01300.025.00011/4"-20Zinc-PlatedGrade 57/32"InchUNC (Coarse)7/16"£35.39
TA01100.025.00011/4"-20PlainGrade 57/32"InchUNC (Coarse)7/16"£937.30
UA01300.025.00011/4"-20Zinc-PlatedGrade 57/32"InchUNC (Coarse)7/16"£1,282.87
VN01100.025.00011/4"-20PlainGrade 57/32"InchUNC (Coarse)7/16"£21.47
WA01330.025.00021/4"-28Zinc-PlatedGrade 57/32"InchUNF (Fine)7/16"£1,675.02
XA01120.025.00021/4"-28PlainGrade 57/32"InchUNF (Fine)7/16"£1,517.47
YN01330.025.00021/4"-28Zinc-PlatedGrade 57/32"InchUNF (Fine)7/16"£38.40
ANVIL -

Hex Nuts

StyleModelPrice (inc. VAT)
A0500364617£0.60
RFQ
A0500364641£1.91
RFQ
A0500364625£0.76
RFQ
BFIG AS 83-
RFQ
CFIG MB-
RFQ
A0500364633£1.35
RFQ
A0500364658£3.31
RFQ
GRAINGER -

Hex Nut 7/8 Carbon Steel

StyleModelFinishGradeRockwell HardnessPrice (inc. VAT)
AU04225.087.0001Hot Dipped GalvanizedDHC24 to C38£7.23
BU04026.087.0001PlainA563C24 to C38£9.64
CU04025.087.0001PlainCB78 to C38£8.27
GRAINGER -

Thin Nut

StyleModelBasic MaterialDia./Thread SizeFinishGradeHeightThread TypeWidthPrice (inc. VAT)
AM51090.050.0001Stainless SteelM5 x 0.8PlainA22.7mmMetric8mm£6.68
BM51090.240.0001Stainless SteelM24 x 3PlainA212mmMetric36mm£23.34
CM51090.100.0001Stainless SteelM10 x 1.5PlainA25mmMetric17mm£25.32
DM51090.120.0001Stainless SteelM12 x 1.75PlainA26mmMetric19mm£32.07
EM51090.200.0001Stainless SteelM20 x 2.5PlainA210mmMetric30mm£35.21
FM51090.160.0001Stainless SteelM16 x 2PlainA28mmMetric24mm£26.47
GM51090.140.0001Stainless SteelM14 x 2PlainA27mmMetric22mm£31.61
HM51090.300.0001Stainless SteelM30 x 3.5PlainA215mmMetric46mm£21.00
IM51090.030.0001Stainless SteelM3 x 0.5PlainA21.8mmMetric5.5mm£5.53
JM51090.040.0001Stainless SteelM4 x 0.7PlainA22.2mmMetric7mm£7.24
KM51090.080.0001Stainless SteelM8 x 1.25PlainA24mmMetric13mm£14.95
LM51090.060.0001Stainless SteelM6 x 1PlainA23.2mmMetric10mm£8.53
MM11380.240.0200SteelM24-2Zinc-PlatedClass 412mmMetric Fine36mm£41.12
NM11380.200.0100SteelM20-1Zinc-PlatedClass 410mmMetric Fine30mm£44.65
OM11360.050.0001SteelM5 x 0.8Zinc-PlatedClass 42.7mmMetric8mm£6.75
PM11380.180.0100SteelM18-1Zinc-PlatedClass 49mmMetric Fine27mm£113.03
QM11360.030.0001SteelM3 x 0.5Zinc-PlatedClass 41.8mmMetric5.5mm£5.99
RM11360.025.0001SteelM2.5-0.45Zinc-PlatedClass 41.6mmMetric5mm£4.04
SM11360.080.0001SteelM8 x 1.25Zinc-PlatedClass 44mmMetric13mm£7.17
TM11360.100.0001SteelM10 x 1.5Zinc-PlatedClass 45mmMetric17mm£21.06
UM11360.180.0001SteelM18 x 2.5Zinc-PlatedClass 49mmMetric27mm£23.97
VM11380.120.0100SteelM12 x 1Zinc-PlatedClass 46mmMetric Fine19mm£44.78
WM11360.330.0001SteelM33-3.5Zinc-PlatedClass 416.5mmMetric50mm£59.77
XM11380.100.0100SteelM10 x 1Zinc-PlatedClass 45mmMetric Fine17mm£22.09
YM11380.120.0150SteelM12 x 1.5Zinc-PlatedClass 46mmMetric Fine19mm£29.80
StyleModelHeightThread SizeWidthPrice (inc. VAT)
A6CB361.2mmM2 x 0.44mm£10.39
A6CB381.6mmM2.5 x 0.455mm£3.85
APPROVED VENDOR -

A2 Stainless Steel Hex Nut

StyleModelDia./Thread SizeHeightThread SizeWidthPrice (inc. VAT)
AM51080.020.0001M2-0.41.6mmM2 x 0.44mm£3.53
BM51080.025.0001M2-0.452mmM2 x 0.455mm£3.14
AM51080.030.0001M3 x 0.52.4mmM3 x 0.55.5mm£3.29
CM51080.040.0001M4 x 0.73.2mmM4 x 0.77mm£1.20
DM51080.050.0001M5 x 0.84mm-8mm£1.86
EM51080.060.0001M6 x 15mm-10mm£3.42
FM51080.100.0001M10 x 1.58mm-17mm£14.29
AM51080.140.0001M14 x 211mm-22mm£13.59
GM51080.180.0001M18 x 2.515mm-27mm£16.67
HM51080.220.0001M22-2.518mmM22 x 2.532mm£9.27
IM51080.240.0001M24 x 319mm-36mm£11.74
AM51080.270.0001M27 x 322mm-41mm£8.74
JM51080.300.0001M30 x 3.524mm-46mm£20.02
AM51080.330.0001M33-3.526mmM33 x 3.550mm£15.14
APPROVED VENDOR -

Brass Hex Jam Nut, Plain Finish

StyleModelDia./Thread SizeHeightThread TypeWidthPrice (inc. VAT)
A1WU751"-835/64"UNC1.5"£12.20
B1WU671/2"-135/16"UNC3/4"£34.61
B1WU531/4"-205/32"UNC7/16"£39.99
C1WU551/4"-285/32"UNF7/16"-
RFQ
D1WU733/4"-1027/64"UNC1.125"£48.42
E1WU613/8"-167/32"UNC9/16"£65.82
F1WU633/8"-247/32"UNF9/16"-
RFQ
G1WU695/8"-113/8"UNC15/16"£34.41
B1WU575/16"-183/16"UNC1/2"£35.04
APPROVED VENDOR -

Steel Hex Nut, Yellow Zinc Finish

StyleModelDia./Thread SizeThread SizeThread TypePrice (inc. VAT)
AU04122.150.00011 1/2-6"7UNC£45.32
BU04181.150.00021 1/2-12"13UNF£51.18
APPROVED VENDOR -

Steel Hex Nut, Plain Finish

StyleModelDia./Thread SizeGradeHeightThread SizeThread TypeWidthPrice (inc. VAT)
AU04120.150.00011 1/2-6"81 9/32"7UNC2.25"£36.20
BU01100.150.00011 1/2-6"51 9/32"7UNC2.25"£33.11
AU08100.150.00011 1/2-6"21 9/32"7UNC2.25"£28.84
AU04180.150.00021 1/2-12"81 9/32"13UNF2.25"£32.52
CU08160.150.00021 1/2-12"21 9/32"13UNF2.25"£25.81
AU01120.150.00021 1/4-12"51 9/32"13UNF2.25"£34.45
AU22280.100.00011"-82H63/64"-UNC1.625"£135.37
DU22280.062.00015/8"-112H39/64"-UNC1 1/16"£143.42
StyleModel
A1301810076
RFQ
A1301810572
RFQ
A1301810530
RFQ
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Hex Nuts

Hex nuts are metal fasteners having six sides. They can be used with bolts, washers, anchors, studs, threaded rods & screws. They are designed to fasten two or more wood / metal parts or create bolted joints to prevent movement. Raptor Supplies offers these hex nuts from brands like Grainger, Woodhead, Vulcan Hart, Banjo, Apollo, Fabory, Texas Pneumatic Tools, C Sherman Johnson, Disco, Dynaform & more.

Frequently Asked Questions

What standards do these nuts comply with?

  • ANSI
  • RoHS
  • ASME
  • DIN
  • FDA
  • ISO
  • SAE
  • UL

Why are hex nuts easy to turn?

Hexagonal-shaped nuts are easier to turn than other types of fasteners as they have six parallels and require less turning distance / radius. They only need one-sixth or 30 degrees of turning each time to reach the next flat parallel.

How are male or female NPSM threads installed to seal connections?

If you are mating NPSM threads with NPTF or NPT threads, make use of sealant or pipe tape to assure liquid and air-tight sealing.

What is the difference between internal and external drive styles?

The tool needed to tighten a fastener depends on its drive type. Deeper grooves and more points of contact on internal drive designs provide a sturdy grip and need less power to tighten. On the other hand, even lesser force is required to tighten external drive types as they may be secured using a wrench or socket.

How to determine fasteners' strength through Grade or Class?

  • SAE: They are used for Imperial fasteners. The higher the grade, the stronger the fastener. Fasteners with the same grade are designed to be used together. They include SAE Grade 2, 5 and 8 fasteners for light to heavy fastening / stress applications.
  • ISO: Metric fasteners have classifications according to ISO standards. The higher the class, the stronger the fastener. Fasteners with the same first digit are used together. They are available in ISO Class 4, 5, 6, 8, 10 and 12 for light duty fastening or high-stress applications.
  • ASTM: ASTM grades fasteners based on strength. They are available in ASTM Grade 2H, 7, 8, 8M and DH for high strength, stress, pressure & temperature applications. ASTM Grade C units are medium-strength steel nuts.
  • ASME: They are available in Grade F & G for medium or high-stress applications.

We are here to help!

Looking for a part not listed here?