VEDALI HARDWARE CO., LTD
VEDALI HARDWARE CO., LTD Professional Hardware Supplier Perfect Engineering Solutions
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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 .
| Items | Description | Remark | Picture | |
| Material | Stainless steel | 316 ( A4) |
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| Finish / Plating | Plain |
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| Hardness | 22 | HRC | ||
| Color | Plain |
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| Standard | DIN 7981 |
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| Dimensions | Thread dia. | 3.5 | Head dia. | 6.9 |
| Full length | 25 ( 1 inch ) | Head height | 2.5 | |
| Pitch | 1.4 | Head socket | T20 | |
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 .
| 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 | |
We manufacture various hardware parts , you can find and click following descriptions to see more items .
| Screws
| Various standard and non-standard fastener screws with qualified materials for different applications . |
| Nuts and bolts | High tensile strength bolts nuts for engineering projects . |
| Washers and spacers | Different materials washers and spacers for mechanical and clectronic parts |
| Fastener Pins | Precise mechanical tolerances and good quality for industry . |
| Plastic Parts | Customized manufacturing service and top materials for communication and electronics and auto etc . |
| 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 . | |
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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