Home / UNF Bolts, Nuts and Washers / 1/2 inch UNF Hex Head Bolts ASME B18. 2.1 in A4 Stainless Steel

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1/2 inch 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

technical drawing of UNF Hex Head Bolts ASME B18. 2.1

Technical Summary

nominal diameter

1/2

tpi

threads per inch

s max. (inch)

drive size

0.750

k max. (inch)

head height

0.364

b nom. (inch)

nominal thread length

1.250

Standard

ASME B18.2.1

all dimensions in inches

Datasheet

< View All Sizes

Description	Sale Qtys	Price
1/2 x 2 UNF Hex Bolt Part Thread in A4 Stainless WF34035 - 191 in stock	single bolt for £6.83 or box of 8 for £36.21 or bulk of 40 for £140.54	£0.00
1/2 x 2-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34036 - 1 in stock	single bolt for £5.46 or box of 3 for £12.59 or bulk of 15 for £48.33	£0.00
1/2 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34037 - 181 in stock	single bolt for £7.82 or box of 3 for £18.99 or bulk of 15 for £67.61	£0.00
1/2 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34038 - expected in 6 to 9 days	single bolt for £6.27 or box of 3 for £14.80 or bulk of 15 for £54.89	£0.00
1/2 x 3 UNF Hex Bolt Part Thread in A4 Stainless WF34039 - 173 in stock	single bolt for £9.08 or box of 3 for £22.45 or bulk of 15 for £77.90	£0.00
1/2 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless WF34040 - 36 in stock	single bolt for £7.09 or box of 2 for £11.34 or bulk of 10 for £44.58	£0.00
1/2 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless WF34042 - 10 in stock	single bolt for £10.44 or box of 2 for £17.44 or bulk of 10 for £62.99	£0.00
1/2 x 4 UNF Hex Bolt Part Thread in A4 Stainless WF34043 - 6 in stock	single bolt for £10.56 or box of 2 for £17.66 or bulk of 10 for £63.57	£0.00
1/2 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34044 - expected in 7 to 11 days	single bolt for £12.60 or box of 2 for £21.38 or bulk of 10 for £74.72	£0.00
1/2 x 5 UNF Hex Bolt Part Thread in A4 Stainless WF34045 - 7 in stock	single bolt for £17.97 or box of 4 for £47.56 or bulk of 20 for £196.94	£0.00
1/2 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34046 - 70 in stock	single bolt for £12.02 or box of 2 for £20.32 or bulk of 10 for £71.38	£0.00
1/2 x 6 UNF Hex Bolt Part Thread in A4 Stainless WF34047 - 1 in stock	single bolt for £19.46 or box of 2 for £30.19 or bulk of 10 for £112.09	£0.00
1/2 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34048 - 10 in stock	single bolt for £21.94 or box of 3 for £44.67 or bulk of 15 for £182.75	£0.00
1/2 x 7 UNF Hex Bolt Part Thread in A4 Stainless WF34050 - 6 in stock	single bolt for £16.19	£0.00
1/2 x 7-1/2 UNF Hex Bolt Part Thread in A4 Stainless WF34052 - 10 in stock	single bolt for £19.31	£0.00
1/2 x 8 UNF Hex Bolt Part Thread in A4 Stainless WF34054 - 7 in stock	single bolt for £23.31	£0.00

1/2 x 2 UNF Hex Bolt Part Thread in A4 Stainless
WF34035 - 191 in stock

single bolt for £6.83
or box of 8 for £36.21
or bulk of 40 for £140.54

£0.00

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

single bolt for £5.46
or box of 3 for £12.59
or bulk of 15 for £48.33

£0.00

1/2 x 2-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34037 - 181 in stock

single bolt for £7.82
or box of 3 for £18.99
or bulk of 15 for £67.61

£0.00

1/2 x 2-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34038 - expected in 6 to 9 days

single bolt for £6.27
or box of 3 for £14.80
or bulk of 15 for £54.89

£0.00

1/2 x 3 UNF Hex Bolt Part Thread in A4 Stainless
WF34039 - 173 in stock

single bolt for £9.08
or box of 3 for £22.45
or bulk of 15 for £77.90

£0.00

1/2 x 3-1/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34040 - 36 in stock

single bolt for £7.09
or box of 2 for £11.34
or bulk of 10 for £44.58

£0.00

1/2 x 3-3/4 UNF Hex Bolt Part Thread in A4 Stainless
WF34042 - 10 in stock

single bolt for £10.44
or box of 2 for £17.44
or bulk of 10 for £62.99

£0.00

1/2 x 4 UNF Hex Bolt Part Thread in A4 Stainless
WF34043 - 6 in stock

single bolt for £10.56
or box of 2 for £17.66
or bulk of 10 for £63.57

£0.00

1/2 x 4-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34044 - expected in 7 to 11 days

single bolt for £12.60
or box of 2 for £21.38
or bulk of 10 for £74.72

£0.00

1/2 x 5 UNF Hex Bolt Part Thread in A4 Stainless
WF34045 - 7 in stock

single bolt for £17.97
or box of 4 for £47.56
or bulk of 20 for £196.94

£0.00

1/2 x 5-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34046 - 70 in stock

single bolt for £12.02
or box of 2 for £20.32
or bulk of 10 for £71.38

£0.00

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

single bolt for £19.46
or box of 2 for £30.19
or bulk of 10 for £112.09

£0.00

1/2 x 6-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34048 - 10 in stock

single bolt for £21.94
or box of 3 for £44.67
or bulk of 15 for £182.75

£0.00

1/2 x 7 UNF Hex Bolt Part Thread in A4 Stainless
WF34050 - 6 in stock

single bolt for £16.19

£0.00

1/2 x 7-1/2 UNF Hex Bolt Part Thread in A4 Stainless
WF34052 - 10 in stock

single bolt for £19.31

£0.00

1/2 x 8 UNF Hex Bolt Part Thread in A4 Stainless
WF34054 - 7 in stock

single bolt for £23.31

£0.00

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

nominal diameter

1/2

tpi

threads per inch

s max. (inch)

drive size

0.750

k max. (inch)

head height

0.364

b nom. (inch)

nominal thread length

1.250

Standard

ASME B18.2.1

all dimensions in inches

Datasheet