Ningbo halu hardware products co., LTD., after many years of market efforts, with high quality products and high quality service for the general customers high praise, the products in addition to domestic supply customer demand outside, have been exported to Europe and America, Middle East, southeast Asia, Australia, etc.

　　Long-term production rings nut, aluminum nut, T parts, auto parts, non-standard parts, riveting nut, stainless steel products, etc., welcome customers to come to discuss and purchase!

　　1、Nut and bolt or screw screwed together to tighten up the role of parts, all manufacturing machinery must use a kind of original. Nut are various and our common have gb, British standard, American standard, day mark nut. Nut according to different materials, divided into carbon steel, high strength, stainless steel, plastic and so on several big type. According to the product properties corresponding to different countries standard number is divided into general, non-standard, (old) gb, new gb, American, English, German mark. Different sizes, thread inequality is divided into different specifications. General gb, Germany BiaoYong M said (such as M8, the M16), American, English is used fraction or # said specifications (such as 8 #, 10 #, 1/4, 3/8)

　　2、Nut is mechanical equipment closely connected parts, through the inside of the thread, the same specifications nut and screw, can connect together, such as M4-0.7 nut only M4-0.7 screw collocation (in the nut, M4 refers to the nut inside diameter is about 4 mm, 0.7 refers to two thread the distance between the 0.7 mm); American products is also the same, such as 1/4 - and the nut only 1/4 - and the screw to match (1/4 refers to the nut inside diameter is about 0.25 inches, and refers to every inch, there are twenty teeth).

　　Nut type

　　Carbon steel or stainless steel series

　　Riveting nut, locking nut, locking nut, locking nut, four claw nut, screwing in nut, insurance nut, fine rod screw fastening nut, self-locking hexagonal cap nut, special ground screw with nut, hexagonal crown thin nut, rings nut, fine thread full metal hex flange surface nut, full metal hex flange surface nut, fine teeth non-metallic insert hex flange surface nut, fine teeth hex flange surface nut, welding square nut, welding hex nut, fastening nut flush mounted round nut, grooved round nut side perforated round nut face perforated round nut, small round nut, round nut, ring nuts, wing nuts.

　　Copper and lead-free copper series

　　Copper nut, Mosaic copper nut, knurled copper nut, built-in copper nut, injection copper nut, etc.

　　Alloy nut series

　　Zinc copper alloy nut, etc.

　　Locking nut principle

　　DISC - LOCK locking nut is composed of two parts, each part has staggered CAM, due to internal wedge design slope Angle is greater than the bolt nut Angle, the combination and tightly bite into a whole, when there is vibration occurs, DISC - LOCK locking nut raised portion mutual movement, produce uplift tension, so as to achieve the perfect locking effect.

　　Main features

　　Easy installation, integrity, no washer, remove the convenient, reusable, medium carbon steel is made, but with a magnitude of 8.8, 10.9 level and other high strength bolt used together, through the United States military - MIL - STD 1312 Vibration Test7. Results testing, through the Junker Test detection, through the Dynamic Test detection.