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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
d nominal diameter 1/2
tpi threads per inch 20
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 Qty Price Breakdown Despatch Estimate
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  
single bolt for £6.83
or box of 8 for £36.21
or bulk of 40 for £140.54
£0.00
 
single bolt for £5.46
or box of 3 for £12.59
or bulk of 15 for £48.33
£0.00
 
single bolt for £7.82
or box of 3 for £18.99
or bulk of 15 for £67.61
£0.00
 
single bolt for £6.27
or box of 3 for £14.80
or bulk of 15 for £54.89
£0.00
 
single bolt for £9.08
or box of 3 for £22.45
or bulk of 15 for £77.90
£0.00
 
single bolt for £7.09
or box of 2 for £11.34
or bulk of 10 for £44.58
£0.00
 
single bolt for £10.44
or box of 2 for £17.44
or bulk of 10 for £62.99
£0.00
 
single bolt for £10.56
or box of 2 for £17.66
or bulk of 10 for £63.57
£0.00
 
single bolt for £12.60
or box of 2 for £21.38
or bulk of 10 for £74.72
£0.00
 
single bolt for £17.97
or box of 4 for £47.56
or bulk of 20 for £196.94
£0.00
 
single bolt for £12.02
or box of 2 for £20.32
or bulk of 10 for £71.38
£0.00
 
single bolt for £19.46
or box of 2 for £30.19
or bulk of 10 for £112.09
£0.00
 
single bolt for £21.94
or box of 3 for £44.67
or bulk of 15 for £182.75
£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 drawing of UNF Hex Head Bolts ASME B18. 2.1
Technical Summary
d nominal diameter 1/2
tpi threads per inch 20
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
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