Carbon Steel Hex Bolt Kit

8.8 grade high-strength carbon steel, with a blue and white zinc surface, comes with all the bolts, spring washers, flat washers, and nuts in one box. A set of four pieces, which can be used directly without the need for separate washers and nuts. The bolts are made of high-quality carbon steel, so you can use them with confidence. Specifications ranging from M6 to M20 can be supplied in sets.

Send Inquiry

Product Description

This is a set of assembled fasteners - external hexagon bolts, spring washers, flat washers, and hexagon nuts, all four of which are complete. Customers can use it directly for equipment assembly or steel structures without having to go to the warehouse to search for washers or nuts, saving time and effort.

The bolt has a high strength of 8.8 grade and is made of carbon steel that has undergone heat treatment. It is harder than ordinary 4.8 grade bolts and has an upward trend in both tensile and shear strength. Equipped with spring washers to prevent loosening, flat washers to distribute pressure, and hexagonal nuts for locking, one set for one connection point. When assembling, take one set and install it directly.

The blue white zinc surface is not a flashy color, with a uniform zinc layer and a hint of blue in the white. It has moderate to high salt spray ability and is not easy to rust when used in indoor equipment or ordinary outdoor environments. Not eye-catching, and not afraid of customers being picky about inconsistent colors.

Name	Carbon Steel Hex Bolt Kit
Material	Carbon Steel
Standards	GB,DIN, BSW, JIS, UNC, UNF, Non-standard, Customized Drawing
Thread	Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF.
Sizes	M4-M24Metc
Finish	Plain/Zinc plated/Black Oxide/others
Price	0.03usd/pcs-0.50usd/pcs
MOQ	Stardard item(Usually little hundred-little thousand)/determined if non-standard

Product Feature

A complete set saves trouble: bolts, flat washers, spring washers, nuts, all four in one package. The production line workers take one package and it's one set, without having to pick up materials separately or make up numbers. Placing a purchase order is also simple, one part number can handle it.

Anti loosening spring pad, unable to shake off: The 65Mn spring pad has elasticity, and after tightening, the washer is flattened and supported by the rebound force against the nut. No matter how loud the vibration is when the device is turned on, the nut is not easy to retract. By using a torque wrench to apply the standard torque, the anti loosening effect is more stable.