2H12 Two Hole Mush Head Security Machine Screws
Mush head two-hole security machine screws, M5–M16 as tabulated: head diameters (D max) 13.55–38.80 mm, head heights (h max) 3.30–8.95 mm, driven by a two-pin insert bit. Availability matrix unmarked — lengths confirmed at quotation; no standard material line stated on the collected page.
Last updated: 2026-11
Specifications
2H12 scales the two-hole drive up onto a mushroom head: the widest, flattest dome of the line, spanning M5 to M16 with maximum head diameters from 13.55 mm to 38.80 mm and maximum heights from 3.30 mm to 8.95 mm — the low broad bearing circle that spreads clamp load over thin or soft panels and gives the fixing its deliberately anonymous, furniture-grade look. The collected page positions it exactly there: harder to remove than a standard pan head version, but generally used where aesthetics matter more than a high security level, naming trains and public lifts as its ground. The drive is the family standard two-pin insert — reusable, two-way, low to medium torque, cam-out earlier than pin-hex, bits worn with use and hole centre distances that vary between makers. Two fail-closed notes govern the order: the collected availability matrix prints length rows from 12 mm to 300 mm with no legible markings at all, so no lengths are claimed on this page; and the page states no standard material line, so the material is confirmed at quotation rather than assumed from sibling SKUs.
| Designation | 2H12 — mush (broad low dome) head security machine screw, two-hole drive; widest bearing circle of the two-hole line, two-pin insert bit |
|---|---|
| Thread range (tabulated) | M5, M6, M8, M10, M12, M16 |
| Head diameter D max per thread (mm) | M5 13.55 · M6 16.55 · M8 20.65 · M10 24.65 · M12 30.65 · M16 38.80 |
| Head height h max per thread (mm) | M5 3.30 · M6 3.88 · M8 4.88 · M10 5.38 · M12 6.95 · M16 8.95 |
| Length availability | No legible markings in the collected availability matrix (rows 12–300 mm) — confirmed at quotation |
| Security principle | Reusable two-way fixing; medium security resistance, harder to remove than a standard pan head per the collected page; low to medium torque |
| Application (source-stated) | Where aesthetics matter more than high security — e.g. trains and public lifts |
Materials
- Confirmed at quotation (collected page states no standard material line)
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (2H12 Two Hole Mush Head Security Machine Screws) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
Why choose a mush head over a pan head in the same two-hole drive?
Bearing and looks. The mushroom dome is broader and flatter — at M10 the collected table gives a 24.65 mm maximum head diameter against roughly 10 mm class on the pan head — so it spreads the clamp over thin panels, laminates and plastic housings, and its smooth low profile reads as ordinary furniture hardware. The trade-off is head height under impact and the fact that the wide head needs flat access; in a tight countersunk detail, 2H02 is the flush alternative on the same drive.
What lengths and materials can I actually order?
The collected page tabulates length rows from 12 mm to 300 mm across M5–M16 but marks no cells legibly, and it states no standard material line — so both the length and the material are confirmed at quotation against your size mix. State thread, length, substrate and environment on the RFQ; non-standard manufacture and parts made to drawings are the family norm if the tabulated envelope needs extending.
What is the MOQ and lead time for these security screws?
Minimum order quantity is 10,000 pieces per item. Stocked sizes ship in 3–7 days; sizes quoted as available to order, and non-standard sizes or materials, are quoted with a confirmed schedule. Confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for these security screws state?
State the designation code (2H01 through 2H14) and head style, the drive (two-hole pig nose / snake eye — fitted with a matching two-pin insert bit), thread or tapping size and length, the hole centre distance your existing bits expect (the source notes it varies between makers), material and finish, the substrate or mating part, required certificates, and quantity per size — plus destination country.
Related knowledge
- Thread-Forming vs Thread-Cutting vs Thread-Rolling Self-Tapping Screws: What the Evidence Settles on Base Material
- Screw Family Selection by Base Material: Wood, Machine and Self-Tapping Threads, Engagement and Coating
- Hex Bolts vs Socket Head Cap Screws: What the Evidence Settles on Strength, Clearance and Cost
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support