Construction bolt is a kind of bolt mainly used in the field of construction, so the quality requirement is relatively high. The construction bolt can be used to tie the inner and outer formwork of the wall formwork, bear the lateral pressure of concrete and other loads, ensure that the spacing between the inner and outer formwork can meet the design requirements, and is also the fulcrum of the formwork and its supporting structure.
The construction bolts are usually made of round steel bolts with two ends of sleeve wire, also known as pull bolts, and wedge-shaped iron with long holes at both ends of flat steel is used to insert fixed wedge, which has a great influence on the integrality, stiffness and strength of formwork structure.
Construction bolts can reliably limit the loosening size of nuts, but the pin hole position on the bolts is not easy to be gentle with the slot opening where the nuts are best locked. Nuts may be loosened a little, mostly for variable loads and vibration. Building bolts have a small number of loosening parts connected with steel wire to prevent loosening. Steel wires are used to continue through the radial direction of a group of bolts or nuts. Small holes, with steel wire tied and impregnated to prevent loosening, compact structure, more complex monopoly suitable for the compact structure of the Xu rib adjacent.
A490M Hot forged Big Bolt A325, A490, A325M, A490M High Strength Structural Hex bolts Surface: HDG/BLACK Material: Gr8.8 HDG Gr10.9 BLACK Gr12.9 BLACK 42CrMO Bent bolt, U bolt, eye bolt, L bolt, wheel bolt, flange bolt Hex bolts astm a325 a490 a325m a490m N933, din931, ISO 4014, ISO 4015, ISO 4017: structural zinc plated carbon […]
High Strength A490 Bolts High Strength Bolt grade 8.8 10.9 DIN931 DIN933 A325 A490 Material: Carbon Steel, Stainless steel, Alloy Steel etc Size: M4-M100 1/4″-4″ Length: 6mm to 100mm Thread: UNC, UNF are available Surface Treatment: Black oxide, zinc plate, copper plating, Dacromet, Teflon, phosphating Certificate: ISO9001:2008, ROHS, SGS, CE Standard: DIN, ISO, ANSI, ASTM, […]