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Home   /   UNC Bolts, Nuts and Washers   /   Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1/2 inch in BZP Grade 5 - ASME B18.2.1 / SAE J429

Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1/2 inch in BZP Grade 5 - ASME B18.2.1 / SAE J429

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
£2.65
Hex Flange Bolt Serrated Full Thread UNC 1/4 x 1/2 inch in BZP Grade 5   WF77304
£2.65
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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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