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GB846 cross recessed countersunk head self tapping screw is a national standard hidden self-tapping fastener. It adopts a 90-degree flat countersunk h...
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U-bolts are U-shaped fasteners with threads on both ends. They are widely used to secure fluid & gas pipelines, utility poles and signposts, and can also bind ropes and cables. Each U-bolt set is supplied with two nuts and washers, with customizable sizes including rod diameter, total length and thread length.In traditional piping engineering, U-bolts are labeled by the pipe nominal bore they fit. The nominal bore stands for a pipe’s inner diameter for fluid flow calculation, yet this figure does not match the U-bolt’s actual dimensions.Since U-bolts are now used to clamp all kinds of tubes and round bars in diverse sectors, a simpler universal measurement standard is required.Contact us -
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Shoulder screws, also referred to as stripper bolts, are integrated fasteners featuring a cylindrical shoulder beneath the head, functioning as bearings or spacers.
Widely adopted in diverse stamping and mold processes, they position and secure stripper plates while providing precise guidance in blanking and forming presses.
They serve versatile applications including bearing pins for swing arms, connecting links and levers, spindles for cam rollers and other rotating components, pivot shafts, and stud bolts.
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Our self-drilling fasteners support drilling through steel sheets up to 2.25 mm in thickness. Constructed from AISI 410 ferritic-martensitic stainless steel, each screw is finished with a uniform passivated protective coating, effectively lowering corrosion risks in moist, water and steam-prone working scenarios.
Equipped with finely sharpened precision drill tips, the screws achieve smooth penetration for streamlined assembly work. They match standard PH2 Phillips bits for convenient daily mounting operations, cutting down overall installation time.
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DIN7504K is a professional self-drilling fastener with integrated hex flange washer and drill tail tip. Different from ordinary self-tapping screws like DIN7981, it integrates drilling tapping and fastening in one step no pre drilled pilot hole required for thin steel sheet connection. The letter K stands for external hexagon head with one piece flange collar which evenly disperses pressure avoids material denting and improves sealing performance.
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DIN603 carriage bolt features a smooth large round head and integrated square neck under the head. The square block locks into mounting holes during assembly to stop the bolt from spinning when tightening nuts. It is a classic fastener widely matched with hex nuts and flat washers for timber, metal frame and equipment connection.
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