No.20, Xinbeiyuan Rd., Zhongli Dist., Taoyuan City 320, Taiwan


Machine Screws
Space Saving Torx screw(Materials:Steel/SUS304)
SMA222 SMA223 SMA224

The star screw, also known as the Torx screw, is designed to prevent the tool protrusion from deviating from the escape groove and can withstand higher torque.

In addition to saving space for fixing parts, low-head screws can also be used as cover bolts. They are mainly used in automobiles, construction, machinery, home appliances, electronic industries, locomotives and bicycle parts.


Product No.
Material + Surface Treatment
Thread Specifications
Screw length
Effective thread length
SMA222-3-6 SMA222 鋼+鍍層 M3X0.5 6 全牙
SMA222-4-6 SMA222 鋼+鍍層 M4X0.7 6 全牙
SMA222-4-8 SMA222 鋼+鍍層 M4X0.7 8 全牙
SMA222-4-10 SMA222 鋼+鍍層 M4X0.7 10 全牙
SMA222-5-8 SMA222 鋼+鍍層 M5X0.8 8 全牙
SMA222-5-10 SMA222 鋼+鍍層 M5X0.8 10 全牙
SMA222-5-12 SMA222 鋼+鍍層 M5X0.8 12 全牙
SMA222-5-16 SMA222 鋼+鍍層 M5X0.8 16 全牙
SMA223-3-6 SMA223 鋼+鍍層(黑) M3X0.5 6 全牙
SMA223-4-6 SMA223 鋼+鍍層(黑) M4X0.7 6 全牙
SMA223-4-10 SMA223 鋼+鍍層(黑) M4X0.7 10 全牙
SMA223-5-8 SMA223 鋼+鍍層(黑) M5X0.8 8 全牙
SMA223-5-10 SMA223 鋼+鍍層(黑) M5X0.8 10 全牙
SMA223-5-12 SMA223 鋼+鍍層(黑) M5X0.8 12 全牙
SMA223-5-16 SMA223 鋼+鍍層(黑) M5X0.8 16 全牙
SMA224-2-4 SMA224 SUS304 M2X0.4 4 全牙
SMA224-2-5 SMA224 SUS304 M2X0.4 5 全牙
SMA224-2-6 SMA224 SUS304 M2X0.4 6 全牙
SMA224-2-8 SMA224 SUS304 M2X0.4 8 全牙
SMA224-2.6-4 SMA224 SUS304 M2.6X0.45 4 全牙
SMA224-2.6-5 SMA224 SUS304 M2.6X0.45 5 全牙
SMA224-2.6-6 SMA224 SUS304 M2.6X0.45 6 全牙
SMA224-2.6-8 SMA224 SUS304 M2.6X0.45 8 全牙
SMA224-3-6 SMA224 SUS304 M3X0.5 6 全牙
SMA224-3-10 SMA224 SUS304 M3X0.5 10 全牙
SMA224-3-12 SMA224 SUS304 M3X0.5 12 全牙
SMA224-4-6 SMA224 SUS304 M4X0.7 6 全牙
SMA224-4-8 SMA224 SUS304 M4X0.7 8 全牙
SMA224-4-10 SMA224 SUS304 M4X0.7 10 全牙
SMA224-4-16 SMA224 SUS304 M4X0.7 16 全牙
SMA224-4-20 SMA224 SUS304 M4X0.7 20 全牙
SMA224-4-25 SMA224 SUS304 M4X0.7 25 全牙
SMA224-5-8 SMA224 SUS304 M5X0.8 8 全牙
SMA224-5-10 SMA224 SUS304 M5X0.8 10 全牙
SMA224-5-12 SMA224 SUS304 M5X0.8 12 全牙
SMA224-5-16 SMA224 SUS304 M5X0.8 16 全牙
SMA224-5-20 SMA224 SUS304 M5X0.8 20 全牙
SMA224-5-25 SMA224 SUS304 M5X0.8 25 全牙
SMA224-5-30 SMA224 SUS304 M5X0.8 30 全牙
SMA224-6-8 SMA224 SUS304 M6X1 8 全牙
SMA224-6-10 SMA224 SUS304 M6X1 10 全牙
SMA224-6-12 SMA224 SUS304 M6X1 12 全牙
SMA224-6-16 SMA224 SUS304 M6X1 16 全牙
SMA224-6-20 SMA224 SUS304 M6X1 20 全牙
SMA224-6-25 SMA224 SUS304 M6X1 25 全牙
SMA224-6-30 SMA224 SUS304 M6X1 30 全牙
SMA224-6-35 SMA224 SUS304 M6X1 35 全牙
SMA224-6-40 SMA224 SUS304 M6X1 40 全牙

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