China manufacture din933 carbon steel he head bolts he botls

Square head bolts: square head bolts are essentially the same as hex bolts, but with square heads. machine threads allow them to be used with both tapped holes and nuts. ... we offer elevator bolts with countersunk heads for more secure fastening. step bolts: like carriage bolts, step bolts also feature square shoulders and large bearing ...

Astm a193 grade b7 specification for high tensile bolts, screws, stud bolts, threaded rods, anchor bolts and other externally threaded fasteners, made from heat-treated chromium-molybdenum alloy steel grades such as 4140, 4142, 4145, 4140h, 4142h, and 4145h in sae & aisi classification. astm a193 specification covers requirements for chemical composition, mechanical properties, hardness, heat ...

Wing nuts din 315 american form in a2 stainless steelwestfield fasteners ltd wing nuts din 315 american form in a2 stainless steel popularly employed where frequent hand tightening and untightening of joints is required. to the american form, with less rounded, squared off wings.

Modern professional fast delivery acme square nut ifi standard t&y hardware industry co., ltd. us $0.13-$101.00 / piece

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