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

Prod. # Length Each price Bag price Bulk price Price Buy
17344 3-1/2" $7.90 / ea $30.37 / 5 $279.00 / 50 $7.90 / ea $30.37 / 5 $279.00 / 50
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Product Images

Flange bolt dimensions - Side view
Flange bolt dimensions - Top view
Product details
Bolt Depot product# 17344
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 3/4"
Thread count 16
Length 3-1/2"
Thread direction Right hand
Flange diameter Maximum 1.590"
Flange height Minimum 0.110"
Thread length 1-3/4"
Body length Minimum 0.950"
Width across the flats 1-1/4"
Head height Maximum 0.730"

See also

Non-serrated full thread grade 8 hex flange bolts

Flange bolts, Full thread, Grade 8 steel plain finish, 3/4"-16

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.