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Socket hex countersunk captive screws are a type of fastener designed with a hexagonal socket for easy tightening with an Allen key. Their head is countersunk, meaning it sits flush with the surface, offering a neat finish. These screws are “captive,” so they remain attached to the panel or part, which is useful for applications where parts need to be removed and reattached frequently. For quotes,inquiries,or custom captive screws request, please feel free to click the button”get a free quote”.
Material: Stainless Steel 304,316, brass
Standard:GB819
Finish: As finished
Size:M2-M8
Strength Grade:Grade8.9,10.8
Socket Hex Countersunk Captive Screws are commonly used in electronics, machinery, and equipment assemblies to prevent parts from getting lost.Fastenmetal accept custom captive screws and other fasteners. Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and bespoke parts made to drawings. Minimum order quantities apply.By choosing FastenMetal, you can ensure that you are getting reliable, high-quality captive screws with excellent service and support.
| Unit:mm | |||||||||
| Specification(d) | thread distance(P) | dk | head thickness | degree | t | ds | b | ||
| max | min | max | min | ||||||
| M2 | 0.4 | 4 | 3.7 | 1.5 | 90° | 0.6 | 0.75 | 1.5 | 3 |
| M2.5 | 0.45 | 5 | 4.7 | 1.6 | 90° | 0.65 | 0.85 | 1.9 | 3.5 |
| M3 | 0.5 | 6 | 5.7 | 1.7 | 90° | 1.2 | 0.95 | 2.15 | 4 |
| M4 | 0.7 | 8 | 7.64 | 2.3 | 90° | 1.8 | 1.55 | 2.9 | 6 |
| M5 | 0.8 | 10 | 9.64 | 2.8 | 90° | 2.3 | 2.05 | 3.8 | 8 |
| M6 | 1 | 12 | 11.57 | 3.3 | 90° | 2.5 | 2.25 | 4.6 | 10 |
| M8 | 1.25 | 16 | 15.57 | 4.4 | 90° | 3.5 | 3.2 | 6 | 12 |
| Size not listed? Please inqury us | |||||||||
Long socket screws and nuts are sturdy fasteners used for tight, secure fittings in machinery, construction, and heavy-duty projects. These screws have a hex socket head, making them easy to tighten with an Allen key, and are typically paired with matching nuts. They offer strong support and a neat finish, perfect for applications where a solid, lasting hold is essential.For quotes,inquiries,or custom screws and nuts request, please feel free to click the button”get a free quote”.
Standard:DIN912
Finish:As finished
Size:M2.5-M30(Other sizes, please inquiry us)
Strength Grade:12.9
Standard:DIN912
Finish:As finished
Size:M2.5-M30(Other sizes, please inquiry us)
Strength Grade:12.9
Button Head Socket Screws are screws known for their button shaped heads and internal hex drive (socket) that allows for tightening with an Allen key or hex wrench. They are popular in applications requiring a clean, low-profile finish as the rounded head sits above the surface, giving a smooth appearance. Typically made from materials like stainless steel, alloy steel, or even plastic, these screws are widely used in machinery, electronics, and furniture due to their strength and ease of installation.For quotes,inquiries,or custom screws and nuts request, please feel free to click the button”get a free quote”.
Size:M2.5-M16(Other sizes, please inquiry us)
Strength Grade:8
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