products
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Enamelled Hex Head Self Drilling Screw Color Painted Hex Head Self Drilling Screw is strong corrosion resistant on outside roofing sheets working.
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Double flat head with Nibs under head self drilling screws
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Flat washers are an essential part of any fastener assembly. As they serve to incorporate spacing and distribute load when placed between a nut and bolt or screw, they will help prevent wear and distortion of installation surfaces over time.
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(Wood-to-metal applications) 1.For fixing timber to metal 2.For use in pressure treated lumber 3.Wing ream hole in wood preventing "jacking action"
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F436 Material Grade are hardened flat washers which have a Rockwell Hardness value ranging between 38 to 45 HRC. These washers can either have a plain finish or can be hot dipped galvanized. The hardened flat ASTM F436 Washer is used under bolt nuts and head in order to increase the bearing area.
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Ruspert coated self drilling screws work in high corrosion environment. It can be compliant with ASTM B117, ASTM B695, DIN50018, DIN50021 and AS3566.2.Ruspert color covers Silver, Grey, Blue, Brown, White, etc.500 hours, 1000 hours and 1500 hours hours can be selected for Salt Spray Test.5 cycles, 15 cycles and 20 cycles are available for Kesternich Test.
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High trength flat washer for high-strength bolts. The surface on which the washers sit will not sink. These washers prevent bolts from loosening due to the surface on which they sit sinking etc.
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Spring washers are a subtype of washers that are conical in shape to prevent them from resting flush against a surface without the presence of a load. They are designed to provide a spring force and absorb shock by providing an axial load that counters vibrations. As a result, spring washers can drastically prevent fasteners from loosening over time.
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Colorful Plastic Cap Nylon Hex Flange Head Self Drilling Screw Roofing Screw Sheet Metal Screw Standard DIN 7504K Inside Diameter ST3.5-ST6.3 Material C1022A