Stainless Steel Serrated-Flange Hex Head Screws Tail extension guide

Material: Stainless steel SUS304, SUS316, A2-70, A4-80

Standard: GB 5787&Q 180&Q 181&Q 182&ISO 15072&ISO 4162 &DIN 6921&DIN 6922&ASME B 18.2.3.4M&JIS B 1189 (Type 2)

1.Stainless Steel Flanged Hex Head Screws:Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

Inch screws meet ASTM F593 material quality standards and IFI 111 dimensional standards.

Metric screws meet DIN 6921 dimensional standards.

2.Stainless Steel Flanged Hex Head Screws with Slotted Drive:Install these screws with a wrench or a screwdriver. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Dimensions meet ASME B18.6.3 specifications. Head height includes the flange. Length is measured from under the flange.

18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. 316 stainless steel screws are more corrosion resistant than 18-8 stainless steel screws and have excellent resistance to chemicals and salt water. They may be mildly magnetic.

Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine threads are closely spaced to prevent loosening from vibration.

3.Extreme-Strength Stainless Steel Flanged Hex Head Screws:For strength comparable to that of Grade 9 steel and the corrosion resistance of stainless steel, choose these screws. They are work-hardened for extreme strength and can be used in heavy duty stamping applications as well as earth-moving machinery, such as bulldozers and excavators. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. 450 stainless steel screws are more corrosion resistant than 18-8 stainless steel screws and have good resistance to chemicals and salt water. They are magnetic.

4.18-8 Stainless Steel Serrated-Flange Hex Head Screws:Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Serrations under the head grip the material surface for mild vibration resistance, and the flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine threads are closely spaced to prevent loosening from vibration.

5.Super-Corrosion-Resistant 316 Stainless Steel Serrated-Flange Hex Head Screws:More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water. Serrations under the head grip the material surface for mild vibration resistance, and the flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Screws may be mildly magnetic. Head height includes the flange. Length is measured from under the flange.