Tech Information
抗拉強度 Tensile Strength
ISO 898-1 / DIN 267 Spec.
| SAE Grade 5 | SAE Grade 5.1 | SAE Grade 8 | SAE Grade 8.2 | ||||
| 抗拉強度 Tensile Strength | 120,000 PSI | 抗拉強度 Tensile Strength | 120,000 PSI | 抗拉強度 Tensile Strength | 150,000 PSI | 抗拉強度 Tensile Strength | 150,000 PSI |
| 表面硬度 Surface Hardness | 心部硬度 Core Hardness | 表面硬度 Surface Hardness | 心部硬度 Core Hardness | 表面硬度 Surface Hardness | 心部硬度 Core Hardness | 表面硬度 Surface Hardness | 心部硬度 Core Hardness |
| R30N 54 Max | RC 25 ~ 34 | R30 N59.5 Max | RC 25 ~ 40 | R30 N58.6 Max | RC 33 ~ 39 | R30N 54 Max | RC 33 ~ 39 |
| Class 8.8 | Class 9.8 | Class 10.9 | Class 12.9 | ||||
| Core Hardness | Tensile Strength | Core Hardness | Tensile Strength | Core Hardness | Tensile Strength | Core Hardness | Tensile Strength |
| RC 22 ~ 32 | 800 N/mm2 | RC 28 ~ 37 | 900 N/mm2 | RC 32 ~ 39 | 1,040 N/mm2 | RC 39 ~44 | 1,220 N/mm2 |
表面硬度及心部硬度
Surface and Core Hardness
| 公制三角牙 Triangular Thread (Metric) (Type TT) | 公制寬牙 Coarse Thread (Metric) (A/AB/B/TT) | 英制自攻螺 Self-Tapping Screws (Inch) (A/AB/B/C/TT) | 英制鑽尾螺 Self-Drlling Screw (Inch) | ||||
| SAE J1237 | ISO 2702 、DIN 7504 、DIN 7500 | SAE J933 、SAE J81 | SAE J78 | ||||
| 表面硬度 Surface Hardness | 心部硬度 Core Hardness | 表面硬度 Surface Hardness | 心部硬度 Core Hardness | 表面硬度 Surface Hardness | 心部硬度 Core Hardness | 表面硬度 Surface Hardness | 心部硬度 Core Hardness |
| RC 45 Min | RC 28~38 | HV 450Min | HV 240~370 | RC 45 Min | RC 28~38 | RC 50 Min | RC 32~40 |
扭力 Torque
| 分類 Class ification | 公制三角牙 Triangular Thread (Metric) (Type TT) | 公制自攻、鑽尾螺絲 Self-Tapping/ Self-Drilling Screw (Metric) | 英制自攻螺絲 Self-Tapping Screws (Inch) | 英制鑽尾螺絲 Self-Drilling Screw (Inch) | |||||
| 規範 Spec. | SAE J1237 | DIN 7500 | ISO 2702 DIN 7504、7970 | SAE J933 | SAE J78 | ||||
| 規格 Size | 扭力 Torque（Nm） | 扭力 Torque(Nm) | 規格 Size | 扭力 Torque(Nm) | 規格 Size (A/AB) | Torque Kg-cm (lb-In) | 規格 Size | 扭力 Torque (In-lb) | |
| M2-0.4 | 0.7 | 0.5 | M2.9 | 1.5 | #6-20 | 28(24) | #6-20 | 28(24) | |
| M2.5-0.45 | 1.2 | 1 | M3.5 | 2.8 | #8-18 | 45(39) | #8-18 | 48(42) | |
| M3-0.5 | 2.2 | 1.5 | M3.9 | 3.4 | #10-16 | 65(56) | #10-16 | 70(61) | |
| M3.5-0.6 | 3.5 | 2.3 | M4.2 | 4.5 | #12-14 | 102(88) | #12-14 | 106(92) | |
| M4-0.7 | 5.2 | 3.4 | M4.8 | 6.5 | #14-14(1/4) | 164(142) | #14-14(1/4) | 173(150) | |
| M5-0.8 | 10.5 | 7.1 | M5.5 | 10 | 5/16-12 | 334(290) | |||
| M6-1 | 17.7 | 12 | M6.3 | 14 | 3/8-12 | 680(590) | |||
| M8-1.25 | 43 | 29 | |||||||
| M10-1.5 | 87 | 59 | |||||||
| M12-1.75 | 152 | ||||||||
I Nm = 10.19 Kg-cm； 1 Ib-in = 1.152 Kg-cm