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Home   /   UNF Bolts, Nuts and Washers   /   5/16 inch UNF Hex Head Bolts ASME B18. 2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

5/16 inch UNF Hex Head Bolts ASME B18. 2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile 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 BZP-G5 image
technical drawing of UNF Hex Head Bolts ASME B18. 2.1
Technical Summary
d nominal diameter 5/16
tpi threads per inch 24
s max. (inch) drive size 0.500
k max. (inch) head height 0.235
b nom. (inch) nominal thread length 0.875
Standard ASME B18.2.1 / SAE J429
all dimensions in inches
Datasheet
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Hex Bolt Part Thread UNF 5/16 x 1-1/2 inch in BZP Grade 5 Steel
WF27909 - 1007 in stock
sachet of 2 for £2.09
or box of 100 for £17.76
or bulk of 500 for £77.62
£0.00  
Hex Bolt Part Thread UNF 5/16 x 1-3/4 inch in BZP Grade 5 Steel
WF27910 - 555 in stock
single bolt for £2.04
or box of 50 for £17.24
or bulk of 250 for £76.06
£0.00  
Hex Bolt Part Thread UNF 5/16 x 2 inch in BZP Grade 5 Steel
WF27911 - 134 in stock
single bolt for £1.71
or box of 60 for £17.37
or bulk of 300 for £76.47
£0.00  
Hex Bolt Part Thread UNF 5/16 x 2-1/4 inch in BZP Grade 5 Steel
WF27912 - 283 in stock
single bolt for £2.07
or box of 50 for £17.50
or bulk of 250 for £77.27
£0.00  
Hex Bolt Part Thread UNF 5/16 x 2-1/2 inch in BZP Grade 5 Steel
WF27913 - 144 in stock
single bolt for £3.80
or box of 10 for £18.83
or bulk of 50 for £88.63
£0.00  
Hex Bolt Part Thread UNF 5/16 x 2-3/4 inch in BZP Grade 5 Steel
WF27914 - 503 in stock
single bolt for £2.86
or box of 20 for £17.10
or bulk of 100 for £78.29
£0.00  
Hex Bolt Part Thread UNF 5/16 x 3 inch in BZP Grade 5 Steel
WF27915 - 508 in stock
single bolt for £2.49
or box of 40 for £17.83
or bulk of 200 for £78.70
£0.00  
Hex Bolt Part Thread UNF 5/16 x 3-1/4 inch in BZP Grade 5 Steel
WF27916 - 37 in stock
single bolt for £2.70
or box of 30 for £20.16
or bulk of 150 for £89.62
£0.00  
Hex Bolt Part Thread UNF 5/16 x 3-1/2 inch in BZP Grade 5 Steel
WF27917 - 50 in stock
single bolt for £2.40
or box of 50 for £20.14
or bulk of 250 for £88.55
£0.00  
Hex Bolt Part Thread UNF 5/16 x 3-3/4 inch in BZP Grade 5 Steel
WF27918 - 342 in stock
single bolt for £3.22
or box of 15 for £18.75
or bulk of 75 for £85.98
£0.00  
Hex Bolt Part Thread UNF 5/16 x 4 inch in BZP Grade 5 Steel
WF27919 - 41 in stock
single bolt for £2.60
or box of 40 for £22.01
or bulk of 200 for £97.46
£0.00  
Hex Bolt Part Thread UNF 5/16 x 4-1/2 inch in BZP Grade 5 Steel
WF27920 - 49 in stock
single bolt for £4.49
or box of 8 for £21.10
or bulk of 40 for £98.48
£0.00  
Hex Bolt Part Thread UNF 5/16 x 5 inch in BZP Grade 5 Steel
WF27922 - 45 in stock
single bolt for £4.15
or box of 8 for £18.13
or bulk of 40 for £84.40
£0.00  
Hex Bolt Part Thread UNF 5/16 x 5-1/2 inch in BZP Grade 5 Steel
WF27924 - expected in 6 to 9 days
single bolt for £3.81
or box of 10 for £18.91
or bulk of 50 for £86.98
£0.00  
Hex Bolt Part Thread UNF 5/16 x 6 inch in BZP Grade 5 Steel
WF27926 - 46 in stock
single bolt for £3.96
or box of 10 for £20.55
or bulk of 50 for £94.19
£0.00  
sachet of 2 for £2.09
or box of 100 for £17.76
or bulk of 500 for £77.62
£0.00
 
single bolt for £2.04
or box of 50 for £17.24
or bulk of 250 for £76.06
£0.00
 
single bolt for £1.71
or box of 60 for £17.37
or bulk of 300 for £76.47
£0.00
 
single bolt for £2.07
or box of 50 for £17.50
or bulk of 250 for £77.27
£0.00
 
single bolt for £3.80
or box of 10 for £18.83
or bulk of 50 for £88.63
£0.00
 
single bolt for £2.86
or box of 20 for £17.10
or bulk of 100 for £78.29
£0.00
 
single bolt for £2.49
or box of 40 for £17.83
or bulk of 200 for £78.70
£0.00
 
single bolt for £2.70
or box of 30 for £20.16
or bulk of 150 for £89.62
£0.00
 
single bolt for £2.40
or box of 50 for £20.14
or bulk of 250 for £88.55
£0.00
 
single bolt for £3.22
or box of 15 for £18.75
or bulk of 75 for £85.98
£0.00
 
single bolt for £2.60
or box of 40 for £22.01
or bulk of 200 for £97.46
£0.00
 
single bolt for £4.49
or box of 8 for £21.10
or bulk of 40 for £98.48
£0.00
 
single bolt for £4.15
or box of 8 for £18.13
or bulk of 40 for £84.40
£0.00
 
single bolt for £3.81
or box of 10 for £18.91
or bulk of 50 for £86.98
£0.00
 
single bolt for £3.96
or box of 10 for £20.55
or bulk of 50 for £94.19
£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 5/16
tpi threads per inch 24
s max. (inch) drive size 0.500
k max. (inch) head height 0.235
b nom. (inch) nominal thread length 0.875
Standard ASME B18.2.1 / SAE J429
all dimensions in inches
Datasheet
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