螺纹规则 拧紧力矩(N.m). u+ K0 f) u% D! t3 ?
性能等级5.6 性能等级8.8 性能等级10.9
2 J6 _& P! B* oM6 5-7 6-10 11-14( Z1 p, ]9 \- Q# a6 {; G4 c
M8 12-15 19-24 22-29, N! ]3 Z' i, J, @! {# Y) P$ w
M8×1 14-18 21-28 24-31
9 p9 o2 V- r) a; A" _6 ?, }5 [6 RM10 24-30 35-47 43-53
0 P/ d9 e" g) a# f$ rM10×1.25 28-32 41-53 48-59
" v% E8 Y) U" [* ~# ZM10×1 30-36 42-54 51-58/ `: p7 n5 q3 g
M12 42-53 60-72 80-101& k* d$ q7 t2 g9 S
M12×1.5 44-56 66-82 88-107+ v) {+ I$ l8 P* v+ P0 G, G+ w* T
M12×1.25 47-60 72-85 94-1143 P8 N+ f- |' _ o) @7 o) t, H9 {1 ]
M14 72-87 96-126 144-175+ R/ s9 r) z3 A0 c( W, \5 C; [9 {
M14×1.5 80-96 106-132 160-204
; \# ]: p, w; [5 pM16 108-127 156-200 199-234: \* c8 i# p% ~! x' n4 V9 m
M16×1.5 116-144 168-204 214-252# o+ G5 x- N4 e$ q4 u
M18 156-180 192-226 240-2605 n/ z1 h9 D2 l9 C7 L1 U6 [
M18×1.5 162-192 204-240 250-300
6 d; F' _3 y5 L/ a3 E' m+ zM20 216-243 312-372 384-439
$ S9 x2 n2 ^; S! ^5 F0 {M20×1.5 240-264 324-384 433-4804 {$ \/ x4 i6 l0 W0 B4 S; `1 ?( Z
8 \: N9 ^: F8 m9 B' W. B ^
0 T8 w/ |) P7 {. O7 x- b# ~ |