5/16 x 4 lag screw kit with washers, 50 screws + 50 washers

Name: 5/16 x 4 lag screw kit with washers, 50 screws + 50 washers
Brand: Makers Bolt
SKU: B0DM2QPFFQ
Rating: 4.7 (52 reviews)

Makers Bolt ★ 4.70 (52 reviews) Mid-Range

Price tier: Mid-Range

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5/16 x 4 (50 Pack) Lag Screw Kit, 50 Screws and 50 Washers, Ceramic Black Ruspert Coating for Exterior Use, Meets ASTM A307 and ASME B18.2.1, Industrial/Commerical Grade by Makers Bolt

Lag screw kit with 50 5/16" x 4" screws and 50 USS washers. Ceramic black Ruspert coating adds rust resistance for exterior use. Meets ASTM A307 and ASME B18.2.1. Customer insights: None

Highlights

rust-resistant ceramic coating
50 screws + 50 washers
outdoor-grade performance

Pros

Ceramic black Ruspert coating for rust resistance
Includes 50 lag bolts and 50 washers
Meets ASTM A307 and ASME B18.2.1
Exterior-grade coating suitable for ACQ lumber
Support for industrial/commercial use

Cons

Pilot hole recommended for installation
Rating based on 52 reviews (not missing durability claim)
Limited customer insight data

Best For

exterior deck installation
timber framing projects
fence post securing
ACQ-treated lumber connections
industrial/commercial construction
wood-to-wood fastening

Features

Diameter 5/16"
Length 3-1/2"
Head width 1/2", Kit includes 50 Grade 307A lag bolts and 50 USS flat washers (outside diameter 7/8"), Coated with Black Ruspert, a 4 layer weatherproof ceramic coating that provides 2x rust resistance of galvanized, Suitable for use in ACQ treated lumber, pilot hole recommended for installation, Meets ASTM A307, ASME B18. 2. 1, and ASME B18. 21. 1.