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Machrio

Hex Head Bolts

High-strength bolts and screws for structural, mechanical, and general industrial fastening applications. Our bolt inventory includes hex bolts, carriage bolts, eye bolts, U-bolts, J-bolts, anchor bolts, and socket head cap screws. Grades 2, 5, 8, and A325/A490 structural bolts in zinc-plated, hot-dip galvanized, and stainless steel finishes.

7 products

1/2-13 x 2 Inch Full Thread Hex Bolt, 304 Stainless Steel, A2-70, Plain, Pkg Qty 36
Industrial|SKU: AC8890600
1/2-13 x 2 Inch Full Thread Hex Bolt, 304 Stainless Steel, A2-70, Plain, Pkg Qty 36

This 1/2-13 x 2 inch full thread hex bolt is manufactured from corrosion-resistant 304 stainless steel, meeting the A2-70 material grade for reliable strength and durability in demanding environments. Its plain finish provides a clean, non-reflective appearance suitable for a wide range of industrial and construction applications. The fully threaded design offers consistent engagement and clamping force along the entire 2-inch length. Sold in a convenient package quantity of 36, these bolts ensure consistent performance with a tensile strength of approximately 70,000 PSI.

$79.99In Stock
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304 Stainless Steel A2-70 Hex Bolt, 5/16"-18 x 2", Full Thread, Pkg Qty 100
Industrial|SKU: AE0138293
304 Stainless Steel A2-70 Hex Bolt, 5/16"-18 x 2", Full Thread, Pkg Qty 100

This 304 stainless steel hex bolt provides reliable corrosion resistance for demanding industrial and marine applications. It meets the A2-70 material grade, ensuring a minimum tensile strength of 70,000 PSI. The bolt features a 5/16"-18 thread and a 2" length with a fully threaded shank for consistent engagement. The plain finish offers a clean, non-reflective appearance suitable for a wide range of assembly and maintenance tasks.

$99.99In Stock
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304 Stainless Steel Hex Bolt, 1/4"-20 x 1.57" Coarse Thread, Plain Finish, Pkg Qty 100
Industrial|SKU: AF2917097
304 Stainless Steel Hex Bolt, 1/4"-20 x 1.57" Coarse Thread, Plain Finish, Pkg Qty 100

This 304 stainless steel hex bolt offers reliable corrosion resistance for demanding industrial and marine applications. It features a 1/4"-20 coarse thread for secure fastening and a plain finish. Manufactured to A2-70 grade standards, it provides a minimum tensile strength of 70,000 PSI. The bolt measures 1.57 inches in length and is supplied in a practical package quantity of 100 pieces for job site efficiency.

$29.99In Stock
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Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 4.72 in, Partial Thread, Pkg Qty 12
Industrial|SKU: AG0809827
Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 4.72 in, Partial Thread, Pkg Qty 12

This Grade 8.8 carbon steel hex bolt provides a high-strength fastening solution for demanding structural and machinery applications. The black oxide finish offers moderate corrosion resistance. With a nominal diameter of 0.94 inches (M24) and a length of 4.72 inches, it features a partial thread for optimal grip and a 1.38-inch square head (35x35mm) designed for wrenching in confined spaces. Each package contains 12 bolts.

$69.99In Stock
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Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 5/16"-11 x 2-3/4" Coarse Thread, Pkg Qty 100
Industrial|SKU: AE2177844
Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 5/16"-11 x 2-3/4" Coarse Thread, Pkg Qty 100

This Grade 8.8 carbon steel hex bolt provides a reliable, high-strength fastening solution for general construction and industrial assembly. The black oxide finish offers moderate corrosion resistance and a clean appearance. With a 5/16"-11 coarse thread and a 2-3/4" length, it is designed for a partial thread configuration, ensuring optimal grip and shear strength. Each package contains 100 pieces for bulk project requirements.

$59.99In Stock
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Grade 8.8 Carbon Steel Hex Bolt, 3/8"-16 x 2-1/4", Black Oxide, Pkg Qty 500
Industrial|SKU: AF5528572
Grade 8.8 Carbon Steel Hex Bolt, 3/8"-16 x 2-1/4", Black Oxide, Pkg Qty 500

This Grade 8.8 carbon steel hex bolt provides a reliable, high-strength fastening solution for industrial applications. The black oxide finish offers mild corrosion resistance and a clean appearance. With a 3/8"-16 coarse thread and a length of 2-1/4 inches, it is suitable for a wide range of assembly and maintenance tasks. Each case contains 500 pieces, ensuring an efficient supply for production or MRO use.

$159.99In Stock
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Grade 8.8 Carbon Steel Hex Bolt, Black Oxide, 1/2" x 2-3/8" Full Thread, Pkg Qty 100
Industrial|SKU: AF0335391
Grade 8.8 Carbon Steel Hex Bolt, Black Oxide, 1/2" x 2-3/8" Full Thread, Pkg Qty 100

This Grade 8.8 carbon steel hex bolt provides a reliable, high-strength fastening solution for demanding industrial applications. The black oxide finish offers moderate corrosion resistance and a clean, professional appearance. With a 1/2" diameter, a 2-3/8" length, and a fully threaded shank, it ensures consistent engagement and clamping force. Each bolt is rated for a minimum tensile strength of 120,000 PSI, making it suitable for general construction, machinery, and structural assemblies. Sold in a convenient 100-piece package for project efficiency.

$69.99In Stock
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