Fasteners & Trims
4 items
Standard engineering specifications for garment hardware and trims: YKK zipper chain tooth gauges (#3, #5, #8, #10), button sizing Ligne scales (1 Ligne = 0.635 mm), four-piece snap fastener mechanics, and leather belt sizing geometry.
Items
YKK Zipper Sizing & Chain Gauges (#3, #5, #8, #10)
Zipper sizing standards governed by ASTM D2061 and ISO 28219 classify zippers by the physical width of the closed interlocking teeth (chain) in millimeters. Sized numerically as #3 (4.5 mm), #5 (6.0 mm), #8 (7.5 mm), and #10 (10.0 mm), zipper chains are manufactured in Nylon Coil (C), Molded Vislon Plastic (V), and Clamped Metal (M) configurations.
7 specs
Button Sizing & Ligne Scale (ASTM D5171)
Button dimensions are globally measured using the historic French Ligne unit (symbol 'L'), where 1 Ligne equals exactly 0.635 mm (1/40 inch or 0.025 in). Sized from 14L (collar button-downs) and 18L (dress shirt plackets) to 32L (suit coat fronts) and 40L (winter overcoats), the Ligne scale defines standard buttonhole cutting lengths.
8 specs
Snap Fastener Standards & Mechanics
Snap fasteners (press studs) are four-piece mechanical closures standardized under ASTM D4846 and DIN EN 16654. Comprising a Cap and Socket (female unit) paired with a Stud and Post/Eyelet (male unit), snaps are classified into heavy-duty Ring Spring snaps for leather/denim, S-Spring snaps for outerwear, and multi-prong snaps for babywear and knitwear.
7 specs
Leather Belt Sizing & Dimensional Standards
Standard belt sizing defines the exact linear distance from the inside fold of the buckle to the middle center adjustment hole (the 3rd hole on a standard 5-hole belt). Sized in two-inch increments, the universal sizing rule mandates purchasing a belt 2 inches larger than the wearer's trouser waist size (e.g., a 34W pant takes a Size 36 belt), with standardized 1-inch hole intervals.
8 specs