产品
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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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平垫圈是任何紧固件组件的重要组成部分。当它们放置在螺母和螺栓或螺钉之间时，它们用于合并间距和分配负载，因此它们将有助于防止安装表面随时间磨损和变形。
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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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高强度螺栓用高强度平垫圈。垫圈所在的表面不会下沉。这些垫圈可防止螺栓由于其所在的表面下沉等原因而松动。
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弹簧垫圈是垫圈的一种子类型，其形状为圆锥形，以防止它们在没有负载的情况下与表面齐平。它们旨在通过提供抵消振动的轴向载荷来提供弹簧力并吸收冲击。因此，弹簧垫圈可以大大防止紧固件随着时间的推移而松动。
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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
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