About this item HIGH QUALITY TO BE TRUSTWORTHY. 8.8 Grade Alloy Steel, corrosion resistance property, features good wear resistance, high hardness and high strength. MANY SPECIFICATION TO BE CHOSEN: M5x10mm,M5x16mm,M5x20mm,M5x25mm,M5x30mm,M6x12mm,M6x16mm,M6x20mm,M6x25mm,M6x30mm,M8x20mm,M8x25mm,M8x30mm,M8x35mm, Includes 14 Most Common Sizes; Flange bolts have a flange on the bottom of the head that distributes the load like a washer.

STANDARD SIZE(Tolerance:±0.005mm): Uniform force, located in the center of the head with no offset, not easy to slip; Uniform pitch, obvious screw thread, no residual burrs, the set screw threads will be able to get a good grip. (Pitch Size: M5*0.8mm、M6*1.0mm、M8*1.25mm) PLASTIC HEAT SEAL PACKAGING: Practical and convenient of packing box, All of screws and nuts are packed in a durable and sturdy box, this box can be use for a storage box.

THE WIDE APPLICATIONS: Door handle, faucet, light fixture, knobs, locks and toys,, plumber and other small repairs around the shop, garage or home; and all kinds of precision machinery, classified instruments, electronic products, household appliances, communication products.