PRODUCT
Material: Carbon steel
Finish: Black oxide
MOQ:1000PCS
Samples: Free
Place of Origin: Zhejiang China
Product Details
DIN7505 steel black oxide chipboard screws
Chipboard screw is a kind of product after heat treatment technology, suitable for electric tool installation, mainly used for the connection and fastening between wood plate and wood plate and thin steel plate.To a large extent, it can replace the use of ordinary wooden screws (wooden screws are not heat treated).At the same time, the wooden screw is first proposed by the navigation mark to reduce the rod process production, not only saving material, but also the thread sharper.
Description:
| Place of Origin | Jiaxing, Zhejiang, China |
| Dimension | 6mm, 8mm, 10mm,12mm |
| Surfance | /HDG/zinc plated/white/yellow |
| Material | Carbon steel |
| Standard | DIN, AISI, ASME, ISO |
| Non-standards | OEM is available, according to drawing or samples |
| Samples | Samples are free. |
| Package | Pack the box first and put it in the carton, or according to customers' requirement. |
| Payment | T/T or L/C |
| 螺纹规格 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | ||
| d | |||||||||
| d | 最大值 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | |
| 最小值 | 2.25 | 2.75 | 3.2 | 3.7 | 4.2 | 4.7 | 5.7 | ||
| P | 螺距(±10%) | 1.1 | 1.35 | 1.6 | 1.8 | 2 | 2.2 | 2.6 | |
| a | 最大值 | 2.1 | 2.35 | 2.6 | 2.8 | 3 | 3.2 | 3.6 | |
| dk | 最大值=公称 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | |
| 最小值 | 4.7 | 5.7 | 6.64 | 7.64 | 8.64 | 9.64 | 11.57 | ||
| k | ≈ | 1.4 | 1.8 | 2 | 2.35 | 2.55 | 2.85 | 3.35 | |
| dp | 最大值=公称 | 1.5 | 1.9 | 2.15 | 2.5 | 2.7 | 3 | 3.7 | |
| 最小值 | 1.1 | 1.5 | 1.67 | 2.02 | 2.22 | 2.52 | 3.22 | ||
| 槽号 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | ||
| M | ≈ | 2.51 | 3 | 4 | 4.4 | 4.8 | 5.3 | 6.6 | |
Standard export packing or According to customer's requirement
Q:What is your main products?
A:Fasteners, Bolt, nut, screws, washer, threaded rod, anchors, self tapping screws, self driling screws, stainless steel plate, etc.
Q: What is your delivery time?
A:It depends on if we have stock or not, if we have stock goods, we can delivery within 2 days after receive the payment. And normally our production is in 20-30 days for one container (20-26 ton) products.
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Size range: #6 (3.5 mm) × 1" (25 mm) – #8 (4.2 mm) × 3" (75 mm)
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Head: Bugle (tapered 14°) – seats flush without tearing paper or mushrooming MDF
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Drive: Phillips #2 – works with every standard bit on site
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Thread: Coarse, single-lead 45° – deep bite for 700 N pull-out in 18 mm P5 chipboard
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Point: Needle sharp – self-starting in drywall, no pilot needed up to 25 mm wood thickness
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Material: C1022 carbon steel, case-hardened 550-700 HV – torsional strength ≥ 2.8 N·m
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Finish: Black oxide (Fe₃O₄) 2-3 µm + micro-oil – 24 h salt-spray, paint-friendly, no Cr(VI)
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Standards: ASTM C1002 (drywall), EN 14592 (timber), RoHS compliant
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Dual-purpose: Hang drywall, fasten backing strips, build MDF cabinets with one screw
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Fast start: Needle point & wide thread pitch cut drive time 20 % vs. fine-thread drywall screws
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Strip-proof: Cold-formed crests grip fibre walls without blowing out particleboard
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Paint-ready: Black-oxide surface accepts primer, filler or touch-up paint with no telegraphing
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Bit-friendly: Deep #2 recess seats full length of 25 mm bit – 10 000+ driver cycles
Set clutch to 2 500 rpm max. Drive screw until head is just below paper surface—bugle taper automatically countersinks. In hardwood or 38 mm+ boards pre-drill 2 mm pilot to prevent splitting. Not recommended for prolonged outdoor exposure; choose galvanized or 410 stainless for humid environments.
