Hex bolts, Zinc plated grade 5 steel, 5/16"-18 x 3-1/2"

Grade 5 hex bolt

Prod. # Length Each price Bag price Bulk price Price Buy
350 3-1/2" $0.31 / ea $12.24 / 50 $100.00 / 500 $0.31 / ea $12.24 / 50 $100.00 / 500
Cost of all entered products: $0.00
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Product Images

Hex cap screw Varies (Body) dimensions
Grade 5 (Head) dimensions

Product details

Bolt Depot Product #: 350
Units: US
Category: Hex bolts
Subcategory: Hex bolts
Material: Steel
Plating: Zinc
Grade: Grade 5
Thread direction: Right hand
Thread density: Coarse
Diameter: 5/16"
Thread count: 18
Length: 3-1/2"
Length tolerance: +0.04" / -0.06"
Head style: Hex
Drive type: External hex
Head height Min: 0.195"
Head height Max: 0.211"
Width across the flats: 1/2"
Fully threaded: No
Thread length Min: 7/8"
Dimensional standard: ASME B18.2.1
Material standard: SAE J429

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2570
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15030
SAE flat washers, Zinc plated grade 5 steel, 5/16"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
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21805
Hex nylon insert lock nuts, Zinc plated grade 5 steel, 5/16"-18
A hex nut with a nylon ring to resist loosening.
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15022
USS flat washers, Zinc plated grade 5 steel, 5/16"
USS pattern is the most common type of flat washer.
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$0.10 each
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See also

Grade 5 full thread tap bolt

Tap bolts, Zinc plated grade 5 steel, 5/16"-18

A full thread bolt with a six sided head.

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.