Slotted drive roofing bolts

A railroad track spike or a rail spike is a large nail with an offset head that is used to secure rails and base plates to the sleepers in track. as an important part of rail fastening system , rail spike is roughly chisel-shaped with a flat-edged point.

M6-m10 din186 stainless steel 304 316 fixing t head hammer t head bolt: 2.standard: ansi b18.3 hex socket screw: 3.material: sus304,sus316,a2-70,a4-70: 4.grade: 4.8 6.8.8.8 10.9 12.9,a2-70,a4-80etc: 5.surface finish: natural color: 6.size: m3-m52: 7.supply ability: 500mt per month: 8.certificate: iso9001:2008; sgs,ce, 9.packing:

These grade b7 steel screws are nearly twice as strong as our stainless steel screws for high-pressure applications. also known as pressure bolts, they meet the high-pressure and high-temperature regulations of astm a193 and are used to secure pressure tanks, valves, and flanges. length is measured from under the head. screws should be used with astm a194 nuts.

Hot dipped galvanized/powder coated/paint ground anchor earth screw anchor. us $ 0.12-1 / piece . 1000 pieces ... china cheap powder coated ground anchor for sandwich bread toast plate . us $ 0.1-0.2 / piece . ... you can also choose from drop-in anchor, pole anchor, and anchor bolt. as well as from free samples.

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