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BOLTS
Premium industrial bolts engineered for strength, durability, and performance across construction, manufacturing, automotive, and agricultural applications. From standard-duty carriage bolts to high-strength flange and plow bolts, Kelly Industrial Supply, Inc. provides comprehensive fastening solutions with extensive size ranges, protective finishes, and reliable threading options designed for demanding jobsite conditions
Bolt Types: Carriage Bolts, Flange Bolts, Plow Bolts, Elevator Bolts, Step Bolts | Thread Sizes: 1/4-20, 5/16-18, 3/8-16, 1/2-13, 1/2-20, 5/8-11, 5/8-18, 3/4-10, 7/8-9, 1-8 | Lengths: 3/4" through 16" | Thread Types: USS Coarse Thread, SAE Fine Thread | Finishes: Zinc-Plated, Yellow Dichromate, Phosphate Plain, Plain Steel
GRADE 5 CARRIAGE BOLTS
-Available in USS coarse thread from 1/4-20 through 5/8-11 diameter with lengths ranging from 3/4" to 6"
-Finish: Zinc Plated
-Grade: Grade 5 Medium Carbon Steel
-Options: Standard and Ribbed Neck
GRADE 8 CARRIAGE BOLTS
-Thru-hardened Grade 8 steel with full-thread design for maximum holding power.
-Thread Sizes: 1/2-13, 5/8-11, 3/4-10
-Lengths: 1-1/2" to 7"
-Thread Type: USS Coarse
-Finish: Plain Steel
GRADE 8
FLANGE BOLTS
-Integrated serrated flange eliminates separate -washers while providing vibration-resistant locking.
-Thread Sizes (USS): 3/8-16, 1/2-13, 5/8-11, 3/4-10
-Thread Sizes (SAE): 1/2-20, 5/8-18
-Lengths: 1-1/4" to 6"
-Finishes: Yellow Dichromate (USS), Phosphate Plain (SAE)
GRADE 8
PLOW BOLTS
-Grade 8 thru-hardened steel meets SAE J429.
-Thread Sizes: 1/2-13, 5/8-11, 3/4-10, 7/8-9, 1-8
-Lengths: 1-1/2" to 6"
-Thread Type: USS Coarse
-Finish: Plain Steel
-Standard: SAE J429
ELEVATOR
BOLTS
-Thread Sizes: 1/4-20, 5/16-18, 3/8-16
-Lengths: 1" to 3"
-Thread Type: USS Coarse
-Finish: Zinc Plated
-Head Style: Wide Countersunk Flat Head
-Neck: Square Neck
