10 Sets OWOZ Chrome Plated Snap Fastener for Boat Canvas, Convertible Cars and Electric Guitar For this listing, you will get 1. Ten upper part 8000022 – Chrome plated brass upper section with stainless spring 2. Ten lower part 8000048 – Chrome plated marine grade stainless steel screw stud lower section 16 mm long 3. One special wrench 8333333 –stainless steel wrench for OWOZ lower part and upper part. Please be aware that each order will only get one special wrench. OWOZ Snap Fasteners For: Marine Applications: Sprayhood, Bimini Top, Sailcover,Canvas Cover Automobile: Convertibles, Soft Top, Sport Cars, Classics Strap Lock for Electric Guitar and Bass OWOZ Snap Fastener is heavy duty fastener that is ideal for several applications such as marine, automobile, aircraft, military and etc. The Product Specifications Upper part: 8000022 – Chrome plated brass upper section with stainless spring, please see the listing photo for its dimension details. Lower part: 8000048 – Chrome plated marine grade stainless steel screw stud lower section (16 mm.) Please see the listing photo for its dimension details. Special wrench 8333333 –stainless steel wrench for OWOZ lower part and upper part. Please see the listing photo for its dimension details. Clamping capacity for metal up to 1.8mm For textiles up to 2.5mm Necessary aperture diameter 10mm Shearing Force Test Shearing Force Upper Part-lower part 1300N Deforming starts at 1410N Break at 2700N Longitudinal Force Test Shearing Force Upper Part-lower part 1200N Deforming starts at 1270N Break at 1900N Corrosion tested to DIN50018/DIN50021 This listing is also available for wholesale purchases, please don't hesitate to ask me for a price quotation. Nickel plated upper part and nickel plated lower part,different length lower part are also available, please contact me for more information. Shipping by China Post Registered Air Mail with shipping tracking number provided.