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Screw Free Sample Details锛?/span> Name:Chipboard screw StandardIN7505 Size:2.5-6 Material:Carbon steel/stainless steel Coating:Zp, Yzp, HDG, Geomet, Black, Self colour Delivery time:Usually about 45days Certification:EN10204: 3.1 Report Introduction锛?/span> Chipboard screws can be used in place of ordinary wood screws (wood screws are not heat-treated). At the same time, the wood screws are currently produced by the shrinking rod technology first proposed by the navigation mark, which saves materials and has sharper threads. That kind of screws are as crucial as drywall screws in the f