合金鋼內六角承孔螺絲

牙規

3/16''

1/4''

5/16''

3/8''

7/16''

1/2''

5/8''

3/4''

牙規

3/8''

1/2''

5/8''

3/4''

長度

牙數

24T'

20T'

18T'

16T'

14T'

12T'

11T'

10T'

長度

16T'

12T'

11T'

10T'

內六角全牙螺絲

3/8''-9.5

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4''-101.6

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1/2''-12.7

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4-1/2''-114.3

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5/8''-15.9

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5''-127.0

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3/4''-19.1

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5-1/2''-139.7

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1''-25.4

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6''-152.4

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內六角半牙螺絲

1-1/4''-31.8

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↑ 此欄位為半牙螺絲 ↑

1-1/2''-38.1

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公制頭徑英吋韋氏牙

1-3/4''-44.5

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材質：SCM-435 (SCM-3)

2''-50.8

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抗拉強度：120KG/mm以上

2-1/4''-57.2

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2-1/2''-63.5

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2-3/4''-69.9

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3''-76.2

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3-1/2''-88.9

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48 鐵螺絲螺帽