Home / UNF Bolts, Nuts and Washers / UNF Hex Head Bolts ASME B18. 2.1 in A4 Stainless Steel

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UNF Hex Head Bolts ASME B18. 2.1 in A4 Stainless Steel

The most common type of fastener, a hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Popularly used in all assemblies, a standard hex bolt is a staple across the world. Manufactured to ASME B18. 2.1, and includes an unthreaded 'shoulder' or portion of the shank. A hex drive permits a greater torque load to be applied to the joint over most other drive types.

Image of UNF Hex Head Bolts ASME B18. 2.1 in A4 image

Material Selection

BZP-G5

technical drawing of UNF Hex Head Bolts ASME B18. 2.1

Technical Summary

Standard

ASME B18.2.1

all dimensions in inches

Datasheet

< View All UNF Bolts, Nuts and Washers

Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
1/4 x 1-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33857			£0.00
1/4 x 1-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33858			£0.00
1/4 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33859			£0.00
1/4 x 2 UNF Hex Bolt Part Thread in A4 Stainless WF33860			£0.00
1/4 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33861			£0.00
1/4 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33862			£0.00
1/4 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33863			£0.00
1/4 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF33864			£0.00
1/4 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33865			£0.00
1/4 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33866			£0.00
1/4 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF33867			£0.00
1/4 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33868			£0.00
1/4 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF33869			£0.00
1/4 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33870			£0.00
5/16 x 1-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33900			£0.00
5/16 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33901			£0.00
5/16 x 2 UNF Hex Bolt Part Thread in A4 Stainless WF33902			£0.00
5/16 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33903			£0.00
5/16 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33904			£0.00
5/16 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33905			£0.00
5/16 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF33906			£0.00
5/16 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33907			£0.00
5/16 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33908			£0.00
5/16 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33909			£0.00
5/16 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF33910			£0.00
5/16 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33911			£0.00
5/16 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF33913			£0.00
5/16 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33915			£0.00
5/16 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF33917			£0.00
3/8 x 1-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33945			£0.00
3/8 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33946			£0.00
3/8 x 2 UNF Hex Bolt Part Thread in A4 Stainless WF33947			£0.00
3/8 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33948			£0.00
3/8 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33949			£0.00
3/8 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33950			£0.00
3/8 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF33951			£0.00
3/8 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33952			£0.00
3/8 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33953			£0.00
3/8 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33954			£0.00
3/8 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF33955			£0.00
3/8 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33956			£0.00
3/8 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF33957			£0.00
3/8 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33958			£0.00
3/8 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF33959			£0.00
7/16 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33987			£0.00
7/16 x 2 UNF Hex Bolt Part Thread in A4 Stainless WF33988			£0.00
7/16 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33990			£0.00
7/16 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33991			£0.00
7/16 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF33992			£0.00
7/16 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF33993			£0.00
7/16 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF33994			£0.00
7/16 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF33995			£0.00
7/16 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33996			£0.00
7/16 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF33997			£0.00
7/16 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF33998			£0.00
1/2 x 2 UNF Hex Bolt Part Thread in A4 Stainless WF34035			£0.00
1/2 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34036			£0.00
1/2 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34037			£0.00
1/2 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34038			£0.00
1/2 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF34039			£0.00
1/2 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34040			£0.00
1/2 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34042			£0.00
1/2 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF34043			£0.00
1/2 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34044			£0.00
1/2 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF34045			£0.00
1/2 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34046			£0.00
1/2 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF34047			£0.00
1/2 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34048			£0.00
1/2 x 7 UNF Hex Bolt Part Thread in A4 Stainless WF34050			£0.00
1/2 x 7-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34052			£0.00
1/2 x 8 UNF Hex Bolt Part Thread in A4 Stainless WF34054			£0.00
9/16 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34072			£0.00
9/16 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34073			£0.00
9/16 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34074			£0.00
9/16 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF34075			£0.00
9/16 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34076			£0.00
9/16 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF34077			£0.00
9/16 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34078			£0.00
9/16 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF34079			£0.00
9/16 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF34080			£0.00
5/8 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34110			£0.00
5/8 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34111			£0.00
5/8 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34112			£0.00
5/8 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF34113			£0.00
5/8 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34114			£0.00
5/8 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34115			£0.00
5/8 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34116			£0.00
5/8 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF34117			£0.00
5/8 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34118			£0.00
5/8 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF34119			£0.00
5/8 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34120			£0.00
5/8 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF34121			£0.00
5/8 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34122			£0.00
5/8 x 7 UNF Hex Bolt Part Thread in A4 Stainless WF34123			£0.00
5/8 x 7-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34124			£0.00
5/8 x 8 UNF Hex Bolt Part Thread in A4 Stainless WF34125			£0.00
3/4 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34156			£0.00
3/4 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF34157			£0.00
3/4 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34158			£0.00
3/4 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34159			£0.00
3/4 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34160			£0.00
3/4 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF34161			£0.00
3/4 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34162			£0.00
3/4 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF34163			£0.00
3/4 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34164			£0.00
3/4 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF34165			£0.00
3/4 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34166			£0.00
3/4 x 7 UNF Hex Bolt Part Thread in A4 Stainless WF34167			£0.00
3/4 x 8 UNF Hex Bolt Part Thread in A4 Stainless WF34169			£0.00
7/8 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF34191			£0.00
7/8 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34192			£0.00
7/8 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF34193			£0.00
7/8 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34194			£0.00
7/8 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF34195			£0.00
7/8 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34196			£0.00

1/4 x 1-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33857

1/4 x 1-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33858

1/4 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33859

1/4 x 2 UNF Hex Bolt Part Thread in A4 Stainless
WF33860

1/4 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33861

1/4 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33862

1/4 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33863

1/4 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF33864

1/4 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33865

1/4 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33866

1/4 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF33867

1/4 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33868

1/4 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF33869

1/4 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33870

5/16 x 1-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33900

5/16 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33901

5/16 x 2 UNF Hex Bolt Part Thread in A4 Stainless
WF33902

5/16 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33903

5/16 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33904

5/16 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33905

5/16 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF33906

5/16 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33907

5/16 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33908

5/16 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33909

5/16 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF33910

5/16 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33911

5/16 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF33913

5/16 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33915

5/16 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF33917

3/8 x 1-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33945

3/8 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33946

3/8 x 2 UNF Hex Bolt Part Thread in A4 Stainless
WF33947

3/8 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33948

3/8 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33949

3/8 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33950

3/8 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF33951

3/8 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33952

3/8 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33953

3/8 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33954

3/8 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF33955

3/8 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33956

3/8 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF33957

3/8 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33958

3/8 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF33959

7/16 x 1-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33987

7/16 x 2 UNF Hex Bolt Part Thread in A4 Stainless
WF33988

7/16 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33990

7/16 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33991

7/16 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF33992

7/16 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33993

7/16 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF33994

7/16 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF33995

7/16 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33996

7/16 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF33997

7/16 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF33998

1/2 x 2 UNF Hex Bolt Part Thread in A4 Stainless
WF34035

1/2 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34036

1/2 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34037

1/2 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34038

1/2 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF34039

1/2 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34040

1/2 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34042

1/2 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF34043

1/2 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34044

1/2 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF34045

1/2 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34046

1/2 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF34047

1/2 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34048

1/2 x 7 UNF Hex Bolt Part Thread in A4 Stainless
WF34050

1/2 x 7-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34052

1/2 x 8 UNF Hex Bolt Part Thread in A4 Stainless
WF34054

9/16 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34072

9/16 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34073

9/16 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34074

9/16 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF34075

9/16 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34076

9/16 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF34077

9/16 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34078

9/16 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF34079

9/16 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF34080

5/8 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34110

5/8 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34111

5/8 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34112

5/8 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF34113

5/8 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34114

5/8 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34115

5/8 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34116

5/8 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF34117

5/8 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34118

5/8 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF34119

5/8 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34120

5/8 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF34121

5/8 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34122

5/8 x 7 UNF Hex Bolt Part Thread in A4 Stainless
WF34123

5/8 x 7-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34124

5/8 x 8 UNF Hex Bolt Part Thread in A4 Stainless
WF34125

3/4 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34156

3/4 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF34157

3/4 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34158

3/4 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34159

3/4 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34160

3/4 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF34161

3/4 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34162

3/4 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF34163

3/4 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34164

3/4 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF34165

3/4 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34166

3/4 x 7 UNF Hex Bolt Part Thread in A4 Stainless
WF34167

3/4 x 8 UNF Hex Bolt Part Thread in A4 Stainless
WF34169

7/8 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF34191

7/8 x 3-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34192

7/8 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF34193

7/8 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34194

7/8 x 6 UNF Hex Bolt Part Thread in A4 Stainless
WF34195

7/8 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34196

Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.

Technical Summary

Standard

ASME B18.2.1

all dimensions in inches

Datasheet