Square Head Bolts
JBI is the square head bolts supplier and manufacturer in Taiwan. We offers associated products of square head bolts for application in the structural steel industry and automobile industry. The square head bolts can be finishing with a broad range of coatings, such as zinc plated, black oxide, chrome. Customized needs and OEM solutions are welcome.
The square head bolts are more durable and provide easy installation. The coating finish reduces friction for easy installation and protects from rust. If you have interested in our square head bolts, please do not hesitate to contact us via the inquiry form.
We are one of the leading manufacturers, suppliers and exporters of Square Head Bolts. Please contact us for all your needs of Square Head Bolts.
| Types： | Square Head Bolts |
| Size： | 3/16”-3/4”& M4 to M30 |
| Material： |
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| Grade： | SAE J429 Gr.2, 5,8; ASTM A307Gr.A, CL4.8, 5.8, 6.8, 8.8, 10.9, 12.9 |
| Thread： | M, UNC, UNF |
| Finish： |
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| Packing： | Bulk in cartons (25kg Max.) + wooden pallets or according to customer demand. |
| Application： | Structural steel industry, Metal building industry, Mechanical equipment industry, Automobile industry, etc. |
Square head bolt offers a large bearing area for positive gripping with an open or adjustable wrench. Length is measured from under the head. Head width or wrench size is measured across the flats. Plain finish, or bare metal, may or may not have a coating of light oil to resist corrosion.
Square head bolts are externally threaded fasteners, generally made from low or medium carbon steel. They have square shaped external wrenching head.
A square head bolt has a four-sided head. Compared to standard hex bolts, square bolts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening). Square bolts are typically mated with square-headed nuts.
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