304 stainless steel pan head, plum blossom point tail, US 6-32/M3/M4 screws (including T10/T15 slotted step design) are versatile fasteners. Below is a detailed technical solution for their customization.
1. Basic Parameter Confirmation
Material Standard: 304 stainless steel (Grade A2), compliant with ASTM F593/AISI standards; salt spray test ≥ 96h.
Mixed Specifications Available: US 6-32 thread, metric M3 and M4 (separate quote required). Thread length defaults to 2x diameter and is adjustable.
II. Special Head Requirements
Pan head, plum blossom composite structure
Pan head diameter: Φ6.5mm ± 0.1 for 6-32, Φ5.5mm for M3, Φ7mm for M4
Pen blossom groove type: T10 (2.74mm across flats) / T15 (3.27mm across flats), with groove depth ≥ 1.2 times the screw diameter available.
III. Key Tail Features
Pointed tail design: Lead angle 30° ± 2°, with a 0.2mm flat end retaining at the tip to prevent damage.
Grooving step: Undercut width 0.8-1mm, step transition R angle ≤ 0.2mm. Unthreaded polished stem sections are permitted.
IV. Surface Treatment Options
Standard finish
Electrolytic polishing
Passivation (in accordance with ASTM A967)
Optional upgrades: Nickel plating (5-8μm), Teflon coating (12-15μm).
V. Quality Control
Test Items:
Thread Go/No-Go Gauge Test (Go/No-Go)
Head Torque Test (6-32mm must reach 4.5 N·m)
Salt Spray Test Sampling
Certificate Required
Material Report (including Ni/Cr Content)
RoHS/REACH Compliance Statement
VI. Packaging and Delivery
Standard Packaging:
Inner Packaging: Rust-Proof Paper + PE Bag
Outer Packaging: Carton (1000 pieces/carton, gross weight ≤ 15 kg)
Customization Services:
Laser Marking (location/content can be customized)
Mixed Ratio Negotiable (e.g., T10/T15 groove ratio)
VII. Notes
Delivery Time: Mold Development: 7 working days (new specifications)
Material Report (including Ni/Cr Content)
RoHS/REACH Compliance Statement
VI. Packaging and Delivery
Standard Packaging:
Inner Packaging: Rust-Proof Paper + PE Bag
Outer Packaging: Carton (1000 pieces/carton, gross weight ≤ 15 kg)
Customization Services:
Laser Marking (location/content can be customized)
Mixed Ratio Negotiable (e.g., T10/T15 groove ratio)
VII. Notes
Delivery Time: Mold Development: 7 working days (new specifications)
Production Lead Time: 15-20 days
Minimum Order Quantity:
Standard Specifications: 5000 pieces/design
Special Specifications: 10,000 pieces or more
We recommend providing drawings to confirm the following key dimensions:
① ② Transition tolerance between step diameter and major thread diameter
② Minimum wall thickness between the hexalobular socket and the outer edge of the head
③ Required straight length of the pointed tail
Through the above design, this screw significantly surpasses ordinary flat-head machine screws in efficiency, reliability, and adaptability, making it a preferred solution for precision assembly.
