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Home   /   UNC Bolts, Nuts and Washers   /   1/4 inch UNC Hex Head Flange Bolts with Serrations in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

1/4 inch UNC Hex Head Flange Bolts with Serrations in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

Hexagon headed bolt with a flange. Also known as a washer bolt. The wider surface area beneath the head spreads the clamping pressure and negates the need for a washer. These UNC hex head flange bolts are serrated. The serrations are anti-rotational and bite into the material which they are connecting to secure the fixing.
Image of UNC Hex Head Flange Bolts with Serrations in BZP-G5 image
technical drawing of UNC Hex Head Flange Bolts with Serrations
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
k head height 0.28
s drive size 3/8
dc flange diameter 0.56
e width across corners 0.433
h height 0.17
Standard ASME B18.2.1 / SAE J429
all dimensions in inches
html graphic ASME B18.2.1 Flange Bolt Standard HTML
pdf graphic ASME B18.2.1 Flange Bolt Standard PDF
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1/2 inch in BZP Grade 5
WF77304 - 103 in stock
sachet of 2 for £2.21
or box of 40 for £22.42
or bulk of 200 for £88.51
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 5/8 inch in BZP Grade 5
WF77306 - 191 in stock
sachet of 2 for £2.39
or box of 30 for £18.23
or bulk of 150 for £73.44
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 3/4 inch in BZP Grade 5
WF77308 - 156 in stock
sachet of 2 for £2.38
or box of 30 for £18.05
or bulk of 150 for £72.76
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1 inch in BZP Grade 5
WF77302 - 238 in stock
sachet of 2 for £2.34
or box of 30 for £17.86
or bulk of 150 for £71.87
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1 1/4 inch in BZP Grade 5
WF77310 - 186 in stock
single bolt for £1.65
or box of 30 for £25.04
or bulk of 150 for £98.31
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1 1/2 inch in BZP Grade 5
WF77312 - 165 in stock
single bolt for £1.91
or box of 20 for £19.28
or bulk of 100 for £77.25
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 2 inch in BZP Grade 5
WF77314 - 789 in stock
single bolt for £1.52
or box of 30 for £23.17
or bulk of 150 for £90.66
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 2 1/2 inch in BZP Grade 5
WF70075 - 300 in stock
single bolt for £2.67
or box of 15 for £21.77
or bulk of 75 for £86.31
£0.00  
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 3 inch in BZP Grade 5
WF70077 - 1102 in stock
single bolt for £2.09
or box of 20 for £21.26
or bulk of 100 for £83.84
£0.00  
sachet of 2 for £2.21
or box of 40 for £22.42
or bulk of 200 for £88.51
£0.00
 
sachet of 2 for £2.39
or box of 30 for £18.23
or bulk of 150 for £73.44
£0.00
 
sachet of 2 for £2.38
or box of 30 for £18.05
or bulk of 150 for £72.76
£0.00
 
sachet of 2 for £2.34
or box of 30 for £17.86
or bulk of 150 for £71.87
£0.00
 
single bolt for £1.65
or box of 30 for £25.04
or bulk of 150 for £98.31
£0.00
 
single bolt for £1.91
or box of 20 for £19.28
or bulk of 100 for £77.25
£0.00
 
single bolt for £1.52
or box of 30 for £23.17
or bulk of 150 for £90.66
£0.00
 
single bolt for £2.67
or box of 15 for £21.77
or bulk of 75 for £86.31
£0.00
 
single bolt for £2.09
or box of 20 for £21.26
or bulk of 100 for £83.84
£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 Flange Bolts with Serrations
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
k head height 0.28
s drive size 3/8
dc flange diameter 0.56
e width across corners 0.433
h height 0.17
Standard ASME B18.2.1 / SAE J429
all dimensions in inches
html graphic ASME B18.2.1 Flange Bolt Standard HTML
pdf graphic ASME B18.2.1 Flange Bolt Standard PDF
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