DIN 7981 Torx Stainless Steel Screws Self Tapping A4 Pan Head Fastener
DIN 7981 Torx Stainless Steel Screws Self Tapping A4 Pan Head Fastener
Stainlesl steel screws are made from martensite stainless steel grade A4 or 18-8 , with perfect corrossion resistance and mechanical performance . A4 stainless steel screws are widely used for different industrial areas , especailly for oil indutry , vessel industry and some food equipments .
18-8 stainless steel screws are designed according to DIN 7981 standard , pan head with torx dirve for easy to be operated by a torx screw bit , standard tapping threads and sharp point .
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Items |
Description |
Remark |
Picture |
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Material |
Stainless steel |
316 ( A4) |
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Finish / Plating |
Plain |
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Hardness |
22 |
HRC |
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Color |
Plain |
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Standard |
DIN 7981 |
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Dimensions |
Thread dia. |
3.5 |
Head dia. |
6.9 |
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Full length |
25 ( 1 inch ) |
Head height |
2.5 |
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Pitch |
1.4 |
Head socket |
T20 |
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1 . Perfect corrosion resistance
Stainless steel screws are made from grade A4 or 316 with outstanding performance on corrossion resistance .
2 . Not easy to be deformed
18-8 stainless steel screws are resistant from high or low temperature with good ductility , screws will not to be deformed even under strict surroudings .
3 . Nearly without magnet
4 . Good self-cutting
A4 stainless steel screws are made in tapping threads that can pierce and self-cut materials under force .
5 . Eeasy to be operated
Standard head and threads and strict drive design to make stainless steel screws operated smoothly .
A4 Stainless steel screws are normllay used for various industrial areas especailly for strict working surroundings , eg corrossion resistance .
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Normal packing
1. In bulk : Polybag ( 1-5 kgs) and cartons (8-20 kgs ) , 0.01 CBM / CTN
2. Boxes : Box ( 1-3 kgs) and cartons ( 5-15 kgs ) , 0.01 CBM / CTN
3. All cartons to a pallet ( 1X1.2 m )
4. Customized packing |
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We manufacture various hardware parts , you can find and click following descriptions to see more items .
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Screws
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Various standard and non-standard fastener screws with qualified materials for different applications . |
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Nuts and bolts |
High tensile strength bolts nuts for engineering projects . |
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Washers and spacers |
Different materials washers and spacers for mechanical and clectronic parts |
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Fastener Pins |
Precise mechanical tolerances and good quality for industry . |
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Plastic Parts |
Customized manufacturing service and top materials for communication and electronics and auto etc . |
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Precise testing equipments and tools for hardness , dimensions , corrosion resistance and pass rate etc . our tolerance for tools is up to 0.005 mm . |
All products are compliance with RoHS and REACH standards |
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Note : We are available for customized requests on quality
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Stamping parts with complicated designs , min. tolerances to 0.01mm (0.0004 inch ) , monthly capacity ups to 100 tons .
Availabe material : 1. Carbon steel 2. Brass 3. Aluminum 4. Stainless steel 5. Plastic 6. Various alloy steel eg. titanium alloy . |
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Precise turning machines and CNC , tolerances are up to 0.01 and 0.008 mm for limitaiton . 5 million pcs monthly capacity .
Availabe material :
1. Carbon steel 2. Brass 3. Aluminum 4. Stainless steel 5. Plastic 6. Various alloy steel eg. titanium alloy .
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Assorted fastener machines to make different screws , bolts , nuts and pins etc . Diameter from M0.8 to M30 . Monthly capacity ups to 300 tons .
Availabe material : 1. Carbon steel 2. Brass 3. Aluminum 4. Stainless steel 5. Plastic 6. Various alloy steel eg. titanium alloy . |
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Warm Tips
If you are interesting in stainless steel self tapping screws , please contact us via emial or phone , we will get back to you within 12 hours , Thank you !
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