Alloy Steel Shoulder Screws, Surface treatment electroplating environmental protection ROHS color zinc

Comparable to Grade 8 steel, these alloy steel shoulder screws are the strongest we offer. They have a standard shoulder with a little tolerance to fit most machinery and equipment. Also known as stripper bolts, they're commonly used in punch and die assemblies, and as an axle or pivot point.

Same-Size Thread 18-8 Stainless Steel Shoulder Screws. With threads the same diameter as the shoulder, these screws can handle heavy loads. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. A standard shoulder with a little tolerance allows them to fit most machinery and equipment. They’re often used to guide or align components and as an axle or pivot point.

Black-oxide stainless steel screws have a matte-black finish.

There are many types of fasteners for solar photovoltaic brackets, such as bolts, nuts, washers, and lock nuts. These fasteners are generally made of high-strength materials such as stainless steel and carbon steel, which have good corrosion resistance and tensile strength and can withstand external forces such as the weight of the solar photovoltaic support and wind pressure.

There are also many installation methods for solar photovoltaic support fasteners, such as welding, expansion bolts, and anchor bolts. These installation methods have their own advantages and disadvantages, and the appropriate installation method needs to be selected according to the specific situation. For example, in-ground solar photovoltaic power stations, anchor bolts are often used to effectively prevent the support from being blown down by the wind; while in rooftop solar photovoltaic power generation systems, expansion bolts are often used to fix the roof to avoid damage to the roof.

Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*97CM, or as your requirement.

Packing for CNC Brass parts:

1. Usual packing: By pearl cotton/bubble bag/plastic wrap + carton box, 0.5-10kg/carton box.

2. Special packing(for large part/large quantity order): By pearl cotton/bubble bag/plastic wrap +carton box+wooden box.

3. As customers' requirement for CNC aluminum parts