这些支架符合NAS（国家航空航天标准） 规范。它们具有良好的耐腐蚀性，并经过钝化以增强保护。它们可能具有轻微的磁性。用扳手拧紧时，六角的平坦侧面可确保牢固抓握。

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螺纹

(A)

螺纹

(B)

LG。 尺寸 LG。 尺寸 分钟。

LG。 符合规格 每个

18-8不锈钢

3/16"六角尺寸

3/16 " 4-40 3/16 " 4-40 3/32 " ASTM A582、NAS1829C3C03 91299A110 3.95 美元

1/4 " 4-40 3/16 " 4-40 3/32 " ASTM A582、NAS1829C3C04 91299A120 4.01

5/16 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C05 91299A130 4.06

3/8 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C06 91299A140 4.10

7/16 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C07 91299A150 4.16

1/2 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C08 91299A160 4.20

5/8 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C10 91299A170 4.30

3/4 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C12 91299A180 4.39

7/8 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C14 91299A190 4.49

1" 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C3C16 91299A210 4.60

1/4"六角尺寸

1/4 " 4-40 3/16 " 4-40 3/32 " ASTM A582、NAS1829C4C04 91299A220 4.25

5/16 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C4C05 91299A230 4.30

3/8 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C4C06 91299A240 4.35

7/16 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C4C07 91299A250 4.39

1/2 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C4C08 91299A260 4.45

5/8 " 4-40 3/16 " 4-40 1/4 " ASTM A582、NAS1829C4C10 91299A270 4.54

3/4 " 4-40 3/16 " 4-40 1/4 " ASTM A582, NAS1829C4C12 91299A280 4.64

7/8" 4-40 3/16" 4-40 1/4" ASTM A582, NAS1829C4C14 91299A290 4.74

1" 4-40 3/16" 4-40 1/4" ASTM A582, NAS1829C4C16 91299A310 4.83

1 1/8" 4-40 3/16" 4-40 1/4" ASTM A582, NAS1829C4C18 91299A320 5.57

1 1/4" 4-40 3/16" 4-40 1/4" ASTM A582, NAS1829C4C20 91299A330 5.76

1 3/8" 4-40 3/16" 4-40 1/4" ASTM A582, NAS1829C4C22 91299A340 5.95

1 1/2" 4-40 3/16" 4-40 1/4" ASTM A582, NAS1829C4C24 91299A350 6.15