Full Custom Process Specification For Non-standard Pin Tamper Torx Screws, Design & Production Notes For Special-shaped Security & Charging Pile Anti-theft Fasteners

Full Custom Process Specification For Non-standard Pin Tamper torx screws, Design & Production Notes For Special-shaped Security & Charging Pile Anti-theft Fasteners

Standard TP pin tamper torx screws only cover regular M2-M6 lengths. Many outdoor security and charging pile equipment have limited installation space, requiring custom thread pitch, extended/shortened shank, special head thickness and exclusive coating anti-theft screws. Non-standard customization involves mold opening, sample trial and mass production. Unclear drawing marks or wrong material selection cause mass defects, delayed lead time and order rejection.

1. Mold Cost & Lead Time Comparison Of Three Custom Types

Custom Type	New Mold Required	Mold Cost Range	Sample Lead Time	Mass Production Lead Time	Applicable Project Scenarios
Only screw length changed, recess & size unchanged	No new main mold, only cutting blade replacement	0 RMB, only blade processing fee	3-5 days	7-10 days	Standard head TP screws with custom shank length
Custom head thickness/diameter & special thread pitch	New heading mold only	300-800 RMB per set	7-10 days	12-18 days	Ultra-thin charging pile cabinets, narrow installation space equipment
Brand new special head & exclusive non-standard tamper recess	Full new heading, thread rolling & recess mold set	1200-3000 RMB full mold set	12-18 days for samples	20-30 days mass delivery	Scenic exclusive anti-theft equipment, proprietary intellectual property cabinets

2. Mandatory Drawing Confirmation Rules Before Custom Production

1. Drawings must fully mark thread M size, pitch, head outer diameter, head thickness, total length, TP recess model, material and salt spray requirement; missing parameters lead to unmatched samples; 2. Special anti-corrosion note: Mark SUS316 with 1500h salt spray for coastal equipment, SUS304 500h for inland regular security cabinets; 3. Torque limit note for thin sheet application: Mark max allowable tightening torque to prevent sheet piercing; 4. IP protection agreement: Sign exclusive mold contract for proprietary special tamper recess to forbid supplying same mold to other clients.

3. Rectification Solutions For High-frequency Custom Defects

1. Recess cracking & slipping: Increase head thickness, adopt S2 hardened thread rolling mold and lower heading stamping impact speed; 2. Failed salt spray test: Thicken coating thickness and add passivation sealing process for stainless steel custom parts; 3. Thread tolerance mismatch with customer nuts: Adjust thread rolling mold tooth tolerance and test matching with client original nuts at sample stage; 4. Lead time control: Split full new mold orders into sample, pilot mass and formal mass delivery, update production schedule to client 7 days in advance.