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| Categories | SEMS Machine Screw |
|---|---|
| Brand Name: | Runtai |
| Model Number: | SEMS Screws |
| Certification: | ISO9001/TS16949 |
| Place of Origin: | Jiangsu, China (Mainland) |
| MOQ: | 50000 |
| Price: | Negotiable |
| Payment Terms: | L/C, T/T, Western Union, MoneyGram |
| Supply Ability: | 5 Ton/days |
| Delivery Time: | 14-21 days |
| Packaging Details: | PP bag+Carton box+ Wooden Pallet |
| Products Name: | Stainless Steel Cross Recessed Pan Head Screw with Lock Washer External Teeth Assemblies |
| Size: | M1-M60 For choose |
| Material: | steel,stainless steel,copper,iron furniture hardware... |
| Grade: | 4.8, 8, 10.9,12.9 14.9 |
| Surface treatment: | zinc plated, nickel plated, black phosphates for choose |
| Standard: | DIN,ANSI,JIS,ASTM,GB |
Stainless Steel Cross Recessed Pan Head Screw with Lock Washer
External Teeth Assemblies
Products Descriptions
The washer on these screws has sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached. They have a zinc plating that provides corrosion resistance in wet environments. Length is measured from under the head.
Products Specifications
| Thread Size | M4 |
| Thread Pitch | 0.7 mm |
| Length | 25 mm |
| Threading | Fully Threaded |
| Head Diameter | 8.00 mm |
| Head Height | 3.10 mm |
| Washer | |
| OD | 8.05 mm. |
| Thickness | 0.60 mm |
| Drive Style | Phillips |
| Drive Size | No. 2 |
| Material | 18-8 Stainless Steel |
| Finish | Passivated |
| Hardness | Rockwell B70 |
| Tensile Strength | 70,000 psi |
| Thread Type | Metric |
| Thread Spacing | Coarse |
| Thread Fit | Class 6g |
| Thread Direction | Right Hand |
| Head Type | Rounded |
| Rounded Head Style | Pan |
| Rounded Head Profile | Standard |
| Screw Features | With Washer |
| Locking Type | Lock Washer |
| Washer Type | External-Tooth Lock |
| Washer Material | 304 Stainless Steel |
| Washer Finish | Passivated |
| System of Measurement | Metric |
| Specifications Met | ASME B18.13 |
| RoHS | Compliant |
Below details apply for all screws and fasteners.
| Products Details | |||||||
| Available Material | 1. Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 | ||||||
| 2. Steel: C45(K1045), C46(K1046), C20,etc. | |||||||
| 3. Brass: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40),etc. | |||||||
| 4. Bronze: C51000, C52100, C54400, etc. | |||||||
| 5. Iron: 1213, 12L14, 1215, etc. | |||||||
| 6. Aluminum: Al6061, Al6063, etc. | |||||||
| 7. Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045,12L14,etc. | |||||||
| 8. Alloy steel: SCM435,10B21, C10B33,etc. | |||||||
| Material Class | 4.8 6.0 8.8 12.9 | ||||||
| Specification | Various head style and sizes per your request | ||||||
| Surface Finishing | Zn-Plated, Ni-plated, Tin-plated, Passivated, Sandblast and Anodize; | ||||||
| Chromate, Polish, Electro Painting, Black Anodize, Plain, Chrome plated; | |||||||
| Hot Deep Galvanize(H.D.G.) etc. | |||||||
| Heat Treatment | Tempering, Hardening, Spheroidizing, Stress Relieving. | ||||||
| Standard | ISO, DIN, GB, IFI, B.S. ART. | ||||||
| Sample | We could make sample within 7 days free of charge | ||||||
| Lead time | Per on furniture hardware order quantity | ||||||
| Packing | Boxs or pallet or customer request | ||||||
| Payment terms | L/C,T/T | ||||||
Company Test Equipment
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