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˨Ӣ˨˨Լ˨A: ˿B: ˿C: Ӣ˿
A: ƻе˿: Metric
Ex: M3 x 6 C P P B : M3 е˿, 6mm , ʮ, Բͷ, ƺ.Finish Code: ۴Head Code: ͷ͡Thread Code˿ͺ Drive Code: ͷʹ,ͺ Length Code: ˿ (mm)
A-1: Thread Code: ˿ͺŹ˿ֱ˿⾶ʾ˿ͺ, M3 ˿⾶Ϊ3.00mm.; M4 ˿⾶Ϊ4.00mm. Metric Thread Size x Pitch: Note: ˿˿ͺź,ʱע˿. M3x0.5 , M4x0.70, M5x0.8 , M6x1. Ϊ׼淶, ͨ.
A-2: Length Code: ˿:˿, ֱӱʾ˿, λΪmm. ˿֮ܳȱʾ, ֻͷ֮, ͷ߶. ƽͷ˿, ˿֮ܳȱʾͷ߶.
A-3: Drive Code/ ͷʹ,. һ㳣ù: a. Slotted: һ ( Minus ) b. Phillips: ʮ ( Plus ) c. Phil-Slot: һ/ʮ d. Hex Scoket: e. One Way: (ֻ,˳)
A-4: Head Code/ ͷ. һ㳣ù: a. Flat: ƽͷ (,빤ƽ) b. Oval: ɫͷ c. Round: Բͷ d. Pan: Բͷ e. Truss: Բͷ f. Hex : ͷ.
A-5: Finish Code/ ۴. һ㳣ù: a. Z: Zine-Plated: п b. Ni: Ni-Plated: c. Tin-Plated: d. Zine Plated / Green Iridite: пĤ. e. Radiant Plated: f. Passivate: . g. Alodial Finish: ۴

Թ˿ :Ʒֱӱʾ Tapping Type. Ex: M3 x 6 CPPB, Tapping Type: M3 Թ˿, 6mm , ʮ, Բͷ, ƺ. һԲƷʾ, жΪSheet Metal ϲƷʹ.

B: ˿.
a.һԷűʾ, #2-56, #4-40, #6-32, #8-32, #10-24etc.
b.Ӣ⾶ʾ, 0.086-56, 0.112-40 , 0.138-32 , 0.164-32 , 0.190-24etc.
Ex: 632 C 8 C P P B: Finish Code: ۴ Head Code: ͷ Drive Code: ͷʹ,ͺ Length Code: ˿ Thread Code: ˿ͺ
B-1: Thread Code: ˿ͺ һ㳣ù: a. #2-56 (0.086-56): 2 56 b #4-40 (0.112-40) : 4 40 c. #6-32 (0.138-32) : 6 32 d. #8-32 (0.164-32) : 8 32 e. #10-24 (0.190-24): 10 24
B-2: Length Code: ˿ ˿뾭, ǹmm ߴ. 㹫ʽ: (Length Code / 32) x 25.40 = Ƴmm
B-3, B-4,B-5 : ʾʽ빫ͬ.

C: Ӣ˿:
C-1: Thread Code: ʾԽĸΪ8, ֱӳƷ֮.
Ex: 1/8 x 0.50 CPPB: 1 ˿ x 0.50 , PPB Ex: 5/16 x 0.50 CPPB = 2.5/8 x 0.50-PPB : 2 ְ˿ x 0.50 , PPB Ex: 5/32 x 0.50 CPPB =1.25/8 x 0.50-PPB: 1 2 ˿x 0.50 , PPB Ex: 1/4 x 0.50-PPB= 2/8 x 0.50-PPB: 2 ˿ x 0.50 , PPB ע: ʱʾϸ. UNF: ϸ :ҵϳ. UNC: : ػеṹϳ. Ex: 3/8 x 0.50 ,UNF CPPB: 3 ϸ˿ x 0.50 , PPB.
C-2: Length Code: ΪӢʾ, 25.40 Ϊmm. ÿ۹빫ǺǹƣӢǺӢơ ҲÿƵ⾶ݾࡣ

⾶ԺΪλ6810121820׵ȵݾҲԺΪλ0.5,0.75,1,1.5,2,3,ȵ
Ӣ⾶ӢΪλÿӢ25.4ף3/16,5/8,1/4,1/2,ȵùƿ⾶С ӢݾÿӢ纬ٸʾѿ߶25.4ףһ߼⣬һ߼ӢƣԲӦǹơ ݾʱðƵ⵹ӡڰ׷۱ϣ۱ϵӡȽڲ⹫ݾӦòһγȣ101520׵ȵȣһºݾ ӢΪλ涨ƹΪӢƣ磺G1" ùƵλ׹涨ƹΪơ磺M30 ӢһӢ(24.5)ж,һ55Ƚ.ļǶMMݾ,һ60Ƚǡ
һ. : A: ( 60 ) : / B: ( 55 ): / C: ( 30 or 29 ) : D: ( 90 ) :
. ˿: A: Machine Screw: е˿B: Tapping Screw: Թ˿ (ʹڽʹ϶)B-1: Sheet Metal Tapping Screw. (Թ˿)B-2: Plastic Tapping Screw. ( , Թ˿)C: Wooden Screw : ľ˿D: Drywall Screw : ˮǽ˿
. ˿:a.Low Carbon Steel :̼֡b. SS-304 : Stainless Steel 304c. SS-302: Stainless Steel 302 :ṹԽϺád. Aluminum 5052 :Ͻ 5052d. Brass: ͭe. Bronze: ͭf. UNS C11000 Copper: ͭ

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ICP05006270