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Precision cnc bolts

Square neck plow bolts feature large, countersunk heads with short, square necks that help in preventing the bolts from turning as the nuts are tightened. use on heavy equipment. grade 5 steel bolts are hardened, yet more malleable than grade 8, allowing them to withstand shear force.

Din933 din931 carbon steel gr4.8 gr8.8 gr10.9 black zinc plated hex bolt hex head bolt. production technology: cold forging and hot forging sales models: wholesale min order: 1000pcs sample: free sample certificate: mtc, test report export country: asia, middle east, europe, america and so on surface: plain, black, zinc plated

10. timber drive railway screw spike tiber drive spikes can reduce installation and maintenance costs. the spikes are used for timber construction highway crossing planks and panels, bridge and trestle guard rails, motor car set-off, docks, etc. the washer head is single forged and the excellent holding power of threads provides tight installation.

- hexagon nuts din 555 and din 934 and castle nuts din 935 made from free-cutting steel shall additionally be marked with a groove in one face (fig. 12) fig. 3 t-047left-hand thread shall be marked with a left turning arrow on one bearing surface or a groove halfway up the nut height (fig. 3)

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