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Home   /   UNC Bolts, Nuts and Washers   /   1/4 inch UNC Hex Head Bolts ASME B18.2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

1/4 inch UNC 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 section of the shaft. A hex drive permits a greater torque load to be applied to the joint over most other drive types.
Image of UNC Hex Head Bolts ASME B18.2.1 in BZP-G5 image
technical drawing of UNC Hex Head Bolts ASME B18.2.1
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
b nom. (inch) nominal thread length 0.750
k max. (inch) head height 0.188
s max. (inch) drive size 0.438
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 UNC 1/4 x 1-1/4 inch in BZP Grade 5 Steel
WF28278 - 443 in stock
sachet of 2 for £2.56
or box of 100 for £26.33
or bulk of 500 for £118.90
£0.00  
Hex Bolt Part Thread UNC 1/4 x 1-3/8 inch in BZP Grade 5 Steel
WF28279 - 276 in stock
single bolt for £1.47
or box of 40 for £9.59
or bulk of 200 for £44.93
£0.00  
Hex Bolt Part Thread UNC 1/4 x 1-1/2 inch in BZP Grade 5 Steel
WF28280 - 215 in stock
sachet of 2 for £1.84
or box of 100 for £15.68
or bulk of 500 for £68.84
£0.00  
Hex Bolt Part Thread UNC 1/4 x 1-3/4 inch in BZP Grade 5 Steel
WF28281 - 286 in stock
sachet of 2 for £2.59
or box of 100 for £27.82
or bulk of 500 for £125.62
£0.00  
Hex Bolt Part Thread UNC 1/4 x 2 inch in BZP Grade 5 Steel
WF28282 - 117 in stock
sachet of 2 for £2.82
or box of 100 for £39.36
or bulk of 500 for £183.01
£0.00  
Hex Bolt Part Thread UNC 1/4 x 2-1/4 inch in BZP Grade 5 Steel
WF28283 - 272 in stock
single bolt for £1.59
or box of 80 for £21.01
or bulk of 400 for £93.52
£0.00  
Hex Bolt Part Thread UNC 1/4 x 2-1/2 inch in BZP Grade 5 Steel
WF28284 - 891 in stock
single bolt for £1.47
or box of 80 for £19.56
or bulk of 400 for £86.59
£0.00  
Hex Bolt Part Thread UNC 1/4 x 2-3/4 inch in BZP Grade 5 Steel
WF28285 - 256 in stock
single bolt for £1.80
or box of 80 for £23.60
or bulk of 400 for £105.15
£0.00  
Hex Bolt Part Thread UNC 1/4 x 3 inch in BZP Grade 5 Steel
WF28286 - 284 in stock
single bolt for £2.61
or box of 80 for £44.47
or bulk of 400 for £208.17
£0.00  
Hex Bolt Part Thread UNC 1/4 x 3-1/4 inch in BZP Grade 5 Steel
WF28287 - 24 in stock
single bolt for £2.75
or box of 30 for £22.04
or bulk of 150 for £100.80
£0.00  
Hex Bolt Part Thread UNC 1/4 x 3-1/2 inch in BZP Grade 5 Steel
WF28288 - 265 in stock
single bolt for £2.74
or box of 30 for £21.75
or bulk of 150 for £99.17
£0.00  
Hex Bolt Part Thread UNC 1/4 x 3-3/4 inch in BZP Grade 5 Steel
WF28289 - 126 in stock
single bolt for £2.62
or box of 20 for £12.12
or bulk of 100 for £55.94
£0.00  
Hex Bolt Part Thread UNC 1/4 x 4 inch in BZP Grade 5 Steel
WF28290 - 418 in stock
single bolt for £2.60
or box of 30 for £17.23
or bulk of 150 for £77.59
£0.00  
Hex Bolt Part Thread UNC 1/4 x 4-1/2 inch in BZP Grade 5 Steel
WF28291 - 109 in stock
single bolt for £2.58
or box of 20 for £11.07
or bulk of 100 for £50.47
£0.00  
Hex Bolt Part Thread UNC 1/4 x 5 inch in BZP Grade 5 Steel
WF28292 - 58 in stock
single bolt for £3.06
or box of 15 for £16.12
or bulk of 75 for £74.55
£0.00  
Hex Bolt Part Thread UNC 1/4 x 5-1/2 inch in BZP Grade 5 Steel
WF28293 - 100 in stock
single bolt for £3.81
or box of 15 for £28.10
or bulk of 75 for £130.84
£0.00  
Hex Bolt Part Thread UNC 1/4 x 6 inch in BZP Grade 5 Steel
WF28294 - 44 in stock
single bolt for £3.05
or box of 10 for £10.70
or bulk of 50 for £50.15
£0.00  
sachet of 2 for £2.56
or box of 100 for £26.33
or bulk of 500 for £118.90
£0.00
 
single bolt for £1.47
or box of 40 for £9.59
or bulk of 200 for £44.93
£0.00
 
sachet of 2 for £1.84
or box of 100 for £15.68
or bulk of 500 for £68.84
£0.00
 
sachet of 2 for £2.59
or box of 100 for £27.82
or bulk of 500 for £125.62
£0.00
 
sachet of 2 for £2.82
or box of 100 for £39.36
or bulk of 500 for £183.01
£0.00
 
single bolt for £1.59
or box of 80 for £21.01
or bulk of 400 for £93.52
£0.00
 
single bolt for £1.47
or box of 80 for £19.56
or bulk of 400 for £86.59
£0.00
 
single bolt for £1.80
or box of 80 for £23.60
or bulk of 400 for £105.15
£0.00
 
single bolt for £2.61
or box of 80 for £44.47
or bulk of 400 for £208.17
£0.00
 
single bolt for £2.75
or box of 30 for £22.04
or bulk of 150 for £100.80
£0.00
 
single bolt for £2.74
or box of 30 for £21.75
or bulk of 150 for £99.17
£0.00
 
single bolt for £2.62
or box of 20 for £12.12
or bulk of 100 for £55.94
£0.00
 
single bolt for £2.60
or box of 30 for £17.23
or bulk of 150 for £77.59
£0.00
 
single bolt for £2.58
or box of 20 for £11.07
or bulk of 100 for £50.47
£0.00
 
single bolt for £3.06
or box of 15 for £16.12
or bulk of 75 for £74.55
£0.00
 
single bolt for £3.81
or box of 15 for £28.10
or bulk of 75 for £130.84
£0.00
 
single bolt for £3.05
or box of 10 for £10.70
or bulk of 50 for £50.15
£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 UNC Hex Head Bolts ASME B18.2.1
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
b nom. (inch) nominal thread length 0.750
k max. (inch) head height 0.188
s max. (inch) drive size 0.438
Standard ASME B18.2.1 / SAE J429
all dimensions in inches
Datasheet
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