Suzhou Runtai Precision Hardware Co,.Ltd.
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Black Oxide Metric Alloy Steel Hex Drive Flat Head Screws Countersunk Machine Screws
Products Description
Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws. They're angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Screws with an undercut profile have a shallow head for use in thin materials.
Black-oxide alloy steel screws have mild corrosion resistance in dry environments.
Products Specification
| Thread Size | M4 |
| Thread Pitch | 0.7 mm |
| Length | 10 mm |
| Threading | Fully Threaded |
| Head Diameter | 8 mm |
| Head Height | 2.3 mm |
| Countersink Angle | 90° |
| Drive Style | Hex |
| Drive Size | 2.5 mm |
| Material | Black-Oxide Alloy Steel |
| Fastener Strength Grade/Class | Class 10.9 |
| Hardness | Rockwell C32 |
| Tensile Strength | 120,000 psi |
| Thread Type | Metric |
| Thread Spacing | Coarse |
| Thread Fit | Class 6g |
| Thread Direction | Right Hand |
| Head Type | Flat |
| Flat Head Profile | Standard |
| System of Measurement | Metric |
| Specifications Met | DIN 7991, ISO 10642 |
| RoHS | Compliant |
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