First, the general method of "material number (P/N)" for screws:
1. Electroplating color number: N1-Nickel N2-Cpper Nickel N3-Three Layer Nickel (Three Layer Nickel), also known as anti-rust nickel N4-Black Nickel (Black Nickel) N5-Chemical nickel (also known as no Electrodepositing nickel) Z1-White Zinc Z2-Blue Zinc Z3-Dichromate Z4-Black Zinc Z5-Wellow Zinc Z6-Clear Chromate And Red DYE) Z7-Zinc With Green Z8-Zinc With Blue Z9-Trivalent Blue Zinc ZW-Trivalent White Zinc ZY-Trivalent Color (Trivalent Chromate) ZP-phosphate black zinc (614 Black Zinc) ZB-trivalent (chromium) black zinc (Trivalent Black Zinc/GR3 Black zinc) D1-grey Dacromet (Dacromet) D2-black Dacromet (Black Dacromet) G1-Bronze (Brass) G2-Red Copper (Copper) G3-Bronze T1-Electric Army Green T2-Electrophoresis Paint (Black) (ELECTROPHORESIS (BLACK)) Cr-Chrome Sn-Tin-Plating Ag-Silver-Plating Au- Gold-plated O1-Black Oxide (Black Oxide) T3-Black Oxide Without Oil PA-Primitive colors A-Spray Yellow Paint B-Pink Paint (Spray Pink Paint) C-Spray White Paint (Spray White Paint) D-Spray Gray Paint (Spray Gray Paint) E-Spray Black Paint
2. Material code: S1-SUS 410 cleaning (Clean) S2-SUS 302 cleaning (Clean) S3-SUS 303 cleaning (Clean) S4-SUS 304 cleaning (Clean) S5-SUS 305 cleaning (Clean) S6-SUS 316 cleaning (Clean) S7-SUS 430 (Clean) S8-SUS 301 (Clean) S9-SUS 384 (Clean) SB-SUS 302 Black-plated zinc CU1-Bronze cleaning (Clean) CU2-Red copper cleaning (Clean) PR -Phosphor Bronze SC- Silicon Bronze NL- Nylon (Nylon) AL- Aluminum Cleaning (Clean) C1-C1006~C1010 C2-C1018 C3-C1015~C1016 C4-SCM435 C5-C1022 C6-10B21
3. Other numbers: H-hardening (Heat Treatment) Screws with combined mesons must be marked with SEM, and at the same time what meson they are wearing.
Second, the screw "material number (P/N)" method:
1. Screw (SCREW)
1.1 Number composition: Production standard head type tooth type needle type --- Nominal X length --- Material plating color hardened Example: 1. (JIS standard) P/N: JPWST-4X12X10-C2N1H means this screw is JIS standard , Triangle machine wire S-type 4X12 self-tapping screw, basin head washer "+" pin type, C1018 material nickel-plated and hardened, the size of the meson is 10mm.
2. (AISI standard) P/N: APM4-6#-32X16-C1Z9 (SEM) means that this screw is AISI standard, the material is C1006, the basin head plum needle #6-32X16 is a combination mechanical screw with a meson, and the electroplating is three Price color.
3. (BSW standard) P/N: BPM3-5/32X34-C6D1 means that this screw is BSW standard, the material is 10B21, the basin head is "+" cut groove 5/32X34, and the machine screw is rusty gray.
1.2 Description of the composition of the serial number:
1.2.1 Production standard: J-Japanese standard (JIS) D-European standard (DIN) A-American standard (AISI) G-National standard (GB) B-British standard (BSW) S-International standard (ISO) T-special Standard
1.2.2 Head type: C-cylindrical head B-high flat head P-pot head K-sink (flat) head O-half round head R-round head H-hexagonal head T-large flat head VV head BU-button head Q-square head FL-gangshan head PW-P head with meson HW- H head with meson WB-dish-shaped head FB-horn head E-special head type
1.2.3 Tooth type: M-machine wire A-canine BB (steel) tooth T-cutting foot C-pointed tail 40°tooth CB-flat tail 40°tooth U-umbrella tooth AB-cutting element tooth BZ-B tooth clamp Foot TZ-T Teeth Clamping Foot MZ-Mechanical Teeth Clamping Foot MG-Machine Wire Dog Tail BTZ-Triangular B Tooth Cut Tail PTZ-Triangle P Tooth Cut Tail BTF-BT Five Prongs MGT-Machine Wire Dog Tail ST-Triangle Machine Tooth BT-Triangular B teeth CT-Triangular machine teeth (can pass nuts) PT-Triangular double-wire teeth TF-B teeth double-wire MU-machine wire round feet BF-B teeth five claws MF-machine wire five claws HL-high and low teeth BU -Steel teeth round feet MA-Machine teeth pointed tail TA-Neck double wire W-Wood thread MT-Machine wire cutter feet EJ-EJ teeth (also known as PT teeth) THL-Triangular high and low teeth TT-Special teeth WU-hemp pattern ML-Left-threaded machine wire PTA--Pointed mouth double-threaded triangular teeth FT-Six-faced teeth AU--Pointed mouth undercut teeth AT-A teeth scissors DR-Drilling screws BG-B teeth round tail MTZ-Mechanical teeth bundle Tail E-special tooth type TFT-double wire tooth scissors STA-pointed tail ST-triangular tooth plate PTU-PT triangle tooth round tail 1.2.3 needle (groove) type: 1-"+" 2-"一" 3-"+/-" word 4-Plum blossom 5-Plum blossom belt column 6-Plum blossom cut groove 7-M word 8-meter round word 9-square hole 10-square hole cut groove 11-“+” word square hole 12- Triangular hole 13-Y type 14-oblique Y type 15-S type (also called one-way) 16-H type 17-hexagonal hole 18-five equal angle 19-eight equal angle 20-twelve equal angle 21-two points 22 -CLUTCH 23-Internally concave and external hexagonal cross cutting groove 24-Internally concave and external hexagonal cutting groove 25-Outer plum blossom (LH) 26-Square hole "+/-" (three combinations) 27-External hexagonal cross head 28-External hexagonal whole head
2. Rivet (RIVET)
2.1 Number composition Rivet code-head type body diameter X length material plating color Example: general rivets are: R1-C2 X 3D2CU hollow rivets are: RIT-C5 X 47Z4
4. CLASSIFICATIONS OF SCREW
4.1 Machine screw: The external thread is used in conjunction with the corresponding internal thread.
4.2 Self-tapping screw: There is only one form of external thread. The screw itself has high hardness. It is self-tapping into a screw during assembly when the molding hole of the main part has no thread.
4.3 Production standards: United States (ANSI), International (ISO), Japan (JIS), Germany (DIN), United Kingdom (BSW), China (GB). (Non-standard parts can be produced according to customer requirements)
5. SCREW MATERIAL Screw materials can be divided into
5.1 Iron (light) wire-1010A (1018A)
5.2 Annealing line-FIR
5.3 Easy Car Rail-IR
5.4 Aluminum wire-AL
5.5 Bronze wire-CU
5.6 Red copper wire-RU
5.6 Brass wire-YU
5.7 Antimony wire-ST
5.8 Stainless steel wire-SS etc.
1. Electroplating color number: N1-Nickel N2-Cpper Nickel N3-Three Layer Nickel (Three Layer Nickel), also known as anti-rust nickel N4-Black Nickel (Black Nickel) N5-Chemical nickel (also known as no Electrodepositing nickel) Z1-White Zinc Z2-Blue Zinc Z3-Dichromate Z4-Black Zinc Z5-Wellow Zinc Z6-Clear Chromate And Red DYE) Z7-Zinc With Green Z8-Zinc With Blue Z9-Trivalent Blue Zinc ZW-Trivalent White Zinc ZY-Trivalent Color (Trivalent Chromate) ZP-phosphate black zinc (614 Black Zinc) ZB-trivalent (chromium) black zinc (Trivalent Black Zinc/GR3 Black zinc) D1-grey Dacromet (Dacromet) D2-black Dacromet (Black Dacromet) G1-Bronze (Brass) G2-Red Copper (Copper) G3-Bronze T1-Electric Army Green T2-Electrophoresis Paint (Black) (ELECTROPHORESIS (BLACK)) Cr-Chrome Sn-Tin-Plating Ag-Silver-Plating Au- Gold-plated O1-Black Oxide (Black Oxide) T3-Black Oxide Without Oil PA-Primitive colors A-Spray Yellow Paint B-Pink Paint (Spray Pink Paint) C-Spray White Paint (Spray White Paint) D-Spray Gray Paint (Spray Gray Paint) E-Spray Black Paint
2. Material code: S1-SUS 410 cleaning (Clean) S2-SUS 302 cleaning (Clean) S3-SUS 303 cleaning (Clean) S4-SUS 304 cleaning (Clean) S5-SUS 305 cleaning (Clean) S6-SUS 316 cleaning (Clean) S7-SUS 430 (Clean) S8-SUS 301 (Clean) S9-SUS 384 (Clean) SB-SUS 302 Black-plated zinc CU1-Bronze cleaning (Clean) CU2-Red copper cleaning (Clean) PR -Phosphor Bronze SC- Silicon Bronze NL- Nylon (Nylon) AL- Aluminum Cleaning (Clean) C1-C1006~C1010 C2-C1018 C3-C1015~C1016 C4-SCM435 C5-C1022 C6-10B21
3. Other numbers: H-hardening (Heat Treatment) Screws with combined mesons must be marked with SEM, and at the same time what meson they are wearing.
Second, the screw "material number (P/N)" method:
1. Screw (SCREW)
1.1 Number composition: Production standard head type tooth type needle type --- Nominal X length --- Material plating color hardened Example: 1. (JIS standard) P/N: JPWST-4X12X10-C2N1H means this screw is JIS standard , Triangle machine wire S-type 4X12 self-tapping screw, basin head washer "+" pin type, C1018 material nickel-plated and hardened, the size of the meson is 10mm.
2. (AISI standard) P/N: APM4-6#-32X16-C1Z9 (SEM) means that this screw is AISI standard, the material is C1006, the basin head plum needle #6-32X16 is a combination mechanical screw with a meson, and the electroplating is three Price color.
3. (BSW standard) P/N: BPM3-5/32X34-C6D1 means that this screw is BSW standard, the material is 10B21, the basin head is "+" cut groove 5/32X34, and the machine screw is rusty gray.
1.2 Description of the composition of the serial number:
1.2.1 Production standard: J-Japanese standard (JIS) D-European standard (DIN) A-American standard (AISI) G-National standard (GB) B-British standard (BSW) S-International standard (ISO) T-special Standard
1.2.2 Head type: C-cylindrical head B-high flat head P-pot head K-sink (flat) head O-half round head R-round head H-hexagonal head T-large flat head VV head BU-button head Q-square head FL-gangshan head PW-P head with meson HW- H head with meson WB-dish-shaped head FB-horn head E-special head type
1.2.3 Tooth type: M-machine wire A-canine BB (steel) tooth T-cutting foot C-pointed tail 40°tooth CB-flat tail 40°tooth U-umbrella tooth AB-cutting element tooth BZ-B tooth clamp Foot TZ-T Teeth Clamping Foot MZ-Mechanical Teeth Clamping Foot MG-Machine Wire Dog Tail BTZ-Triangular B Tooth Cut Tail PTZ-Triangle P Tooth Cut Tail BTF-BT Five Prongs MGT-Machine Wire Dog Tail ST-Triangle Machine Tooth BT-Triangular B teeth CT-Triangular machine teeth (can pass nuts) PT-Triangular double-wire teeth TF-B teeth double-wire MU-machine wire round feet BF-B teeth five claws MF-machine wire five claws HL-high and low teeth BU -Steel teeth round feet MA-Machine teeth pointed tail TA-Neck double wire W-Wood thread MT-Machine wire cutter feet EJ-EJ teeth (also known as PT teeth) THL-Triangular high and low teeth TT-Special teeth WU-hemp pattern ML-Left-threaded machine wire PTA--Pointed mouth double-threaded triangular teeth FT-Six-faced teeth AU--Pointed mouth undercut teeth AT-A teeth scissors DR-Drilling screws BG-B teeth round tail MTZ-Mechanical teeth bundle Tail E-special tooth type TFT-double wire tooth scissors STA-pointed tail ST-triangular tooth plate PTU-PT triangle tooth round tail 1.2.3 needle (groove) type: 1-"+" 2-"一" 3-"+/-" word 4-Plum blossom 5-Plum blossom belt column 6-Plum blossom cut groove 7-M word 8-meter round word 9-square hole 10-square hole cut groove 11-“+” word square hole 12- Triangular hole 13-Y type 14-oblique Y type 15-S type (also called one-way) 16-H type 17-hexagonal hole 18-five equal angle 19-eight equal angle 20-twelve equal angle 21-two points 22 -CLUTCH 23-Internally concave and external hexagonal cross cutting groove 24-Internally concave and external hexagonal cutting groove 25-Outer plum blossom (LH) 26-Square hole "+/-" (three combinations) 27-External hexagonal cross head 28-External hexagonal whole head
2. Rivet (RIVET)
2.1 Number composition Rivet code-head type body diameter X length material plating color Example: general rivets are: R1-C2 X 3D2CU hollow rivets are: RIT-C5 X 47Z4
4. CLASSIFICATIONS OF SCREW
4.1 Machine screw: The external thread is used in conjunction with the corresponding internal thread.
4.2 Self-tapping screw: There is only one form of external thread. The screw itself has high hardness. It is self-tapping into a screw during assembly when the molding hole of the main part has no thread.
4.3 Production standards: United States (ANSI), International (ISO), Japan (JIS), Germany (DIN), United Kingdom (BSW), China (GB). (Non-standard parts can be produced according to customer requirements)
5. SCREW MATERIAL Screw materials can be divided into
5.1 Iron (light) wire-1010A (1018A)
5.2 Annealing line-FIR
5.3 Easy Car Rail-IR
5.4 Aluminum wire-AL
5.5 Bronze wire-CU
5.6 Red copper wire-RU
5.6 Brass wire-YU
5.7 Antimony wire-ST
5.8 Stainless steel wire-SS etc.
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