Home Fasteners Bolts Carriage Bolts Ribbed Neck Bolt Grade 5 Steel 5/16-18 x 2-1/2"
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Ribbed Neck Bolt, Round Head, Grade 5, Steel, Zinc Finish, Coarse Thread, 19/32" Rib Length, 5/16-18 x 2-1/2"
(Pack of 50)

Item#: 97581

Lawson Products

• Rib length: For bolts 1" long – 13/32"; For bolts longer than 1" – 19/32"
• Diameter over ribs: 1/4" bolt size – 0.274"; 5/16" bolt size – 0.340"; 3/8" bolt size – 0.405"
• Longitudinal ribs around the shank grip the material and resist spinning of the bolt
• Standard thread length = (2 x Diameter) + 1/4" (not all sizes are threaded to the ribs)
• Zinc-plated
• Meets the following specifications: Mechanical – SAE J429-GR5 (120,000 PSI tensile strength); Dimensional – ANSI B18.5
• Excellent for maintenance applications where it is not possible to make a square hole to accommodate a regular carriage bolt

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Catalog page#: 3-64

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Product Description

• Rib length: For bolts 1" long – 13/32"; For bolts longer than 1" – 19/32"
• Diameter over ribs: 1/4" bolt size – 0.274"; 5/16" bolt size – 0.340"; 3/8" bolt size – 0.405"
• Longitudinal ribs around the shank grip the material and resist spinning of the bolt
• Standard thread length = (2 x Diameter) + 1/4" (not all sizes are threaded to the ribs)
• Zinc-plated
• Meets the following specifications: Mechanical – SAE J429-GR5 (120,000 PSI tensile strength); Dimensional – ANSI B18.5
• Excellent for maintenance applications where it is not possible to make a square hole to accommodate a regular carriage bolt

Technical Specifications

Item#: 97581
Type Carriage Bolt
Diameter 5/16 "
Thread Pitch 18
Thread Coarse
Length 2-1/2 "
Grade 5
Finish Bright Zinc
Head Style Round
Material Carbon Steel
Thread Length Full
Thread Form UNR
Size 5/16X2-1/2 "
Neck Style Ribbed
Rib Length 19/32 "
Rib Diameter 0.340 "
UNSPSC #: 31161603
TAA Compliant: Yes
Weight: 2.88 lb

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