JX-21JG82-M3-7-H6.5-SS, Stainless steel Eleven-shaped knurled screw

Manufacture according to customer drawings or samples. Non-standard customized manufacturing products, Stainless Steel High-Profile Knurled-Head Thumb Screws

Made from 18-8 stainless steel, these thumb screws are chemical resistant and may be mildly magnetic. A tall head allows for more leverage and greater torque while tightening than low-profile thumb screws. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head. Generally used in electric power equipment, electronic machinery, mechanical equipment, household appliances, digital products, water conservancy projects, decoration construction, environmental protection equipment, medical equipment, communication equipment, electric power facilities, electronic products, instrumentation, food machinery, petrochemical, ship assembly, pump and valve pipeline, building curtain wall, open-air occasions, sports facilities, outdoor decoration, etc.

These 18-8 stainless steel thumb screws are chemical resistant and may be mildly magnetic. They have a raised head that makes them easy to grip. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the collar.

Main Cutting Characteristics of Stainless Steel

1. High cutting force: This is particularly prominent in austenitic stainless steel. Although this material has low hardness, it has good plasticity. Therefore, it undergoes significant plastic deformation during cutting, resulting in increased cutting forces. When cutting under the same conditions, austenitic stainless steel consumes about 50% more energy than low-carbon steel.

2. Severe work hardening: Among stainless steels, austenitic stainless steel and ferritic stainless steel exhibit the most significant work hardening. They have high plasticity, and plastic deformation causes intense lattice distortion. Additionally, austenitic stainless steel has poor stability and, under the action of cutting forces, some austenite can transform into martensite. Compounds and impurities in the steel can decompose and disperse due to cutting heat, resulting in the formation of a work-hardened layer during cutting. All of these factors contribute to the pronounced work-hardening phenomenon.

3. Tool adhesion and wear: Stainless steel materials have a high affinity with tool materials, leading to adhesion and diffusion between the tool and the workpiece during cutting, forming built-up edges, and causing tool adhesion and wear. This can significantly reduce the tool's lifespan.

4. Localized high cutting temperatures: Stainless steel requires high cutting forces, resulting in greater power consumption for chip separation and generating more cutting heat. About 20% of the heat is transferred to the tool, compared to only 9% when machining carbon steel. Additionally, due to the poor thermal conductivity of stainless steel, a large amount of cutting heat is concentrated at the contact interface between the cutting zone and the chip, resulting in high localized cutting temperatures.

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*90CM, or as your requirement.

Packaging & Delivery and Packaging Details

1. Shrink film+wooden box

2. Cardboard box+pallet

3. Color box

4. As per the customer's request