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Flange bolts, Partial thread, Grade 8 steel plain finish, 1/2"-20 x 5"

Non-serrated grade 8 hex flange bolts

These bolts are all partially threaded. Shorter lengths are found with full thread.

Prod. # Length Each price Bag price Bulk price Price Buy
17328 5" $3.25 / ea $34.85 / 15 $306.00 / 150 $3.25 / ea $34.85 / 15 $306.00 / 150
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Product Images

Flange bolt dimensions - Side view
Flange bolt dimensions - Top view
Product details
Bolt Depot product# 17328
Units US
Category Flange bolts
Flange bolts have a flange on the bottom of the head that distributes the load like a washer.
Head style Hex flange
Drive type External hex
A hexagonal head for use with a wrench.
Dimensional standard IFI-111 (2002)
Meets IFI-111 (2002).
Fully threaded No
(Note: Shorter lengths are found under full thread.)
Serrated No
Flange bolts that are non-serrated are sometimes called frame bolts.
Material Steel
A tempered medium carbon steel.
Grade Grade 8
Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications.
Finish Plain
Unplated finish.
Thread density Fine
Diameter 1/2"
Thread count 20
Length 5"
Thread direction Right hand
Flange diameter Maximum 1.070"
Flange height Minimum 0.080"
Thread length 1-1/4"
Body length Minimum 3.269"
Width across the flats 3/4"
Head height Maximum 0.510"

See also

Non-serrated full thread grade 8 hex flange bolts

Flange bolts, Full thread, Grade 8 steel plain finish, 1/2"-20

Full thread, including shorter lengths.

Flange bolts

Metric flange bolts

Flange bolts have a flange on the bottom of the head that distributes the load like a washer.