Rozměry předvrtaných otvorů pro závity

Řezací závitníky

Řezací závitníky Tvářecí závitníky

M1×0,25 0,96 0,98M1,2×0,25 1,15 1,17M1,4×0,3 1,25 1,29M1,6×0,35 1,45 1,47M1,7×0,35 1,55 1,57M1,8×0,35 1,65 1,67M2×0,4 1,85 1,87M2,3×0,4 2,15 2,18M2,5×0,45 2,3 2,33M2,6×0,45 2,4 2,43M3×0,5 2,8 2,83M3,5×0,6 3,25 3,28M4×0,7 3,7 3,75M5×0,8 4,65 4,7M6×1 5,55 5,6M8×1,25 7,5 7,55M10×1,5 9,4 9,48M12×1,75 11,4 11,39M14×2 13,1 13,15M16×2 15,1 15,15

ISO3X(6GX)ISO2X(6HX)ø mmM

M1,0×0,25 0,75M1,1×0,25 0,85M1,2×0,25 0,95M1,4×0,3 1,10M1,6×0,35 1,25M1,7×0,35 1,30M1,8×0,35 1,45M2,0×0,4 1,6M2,2×0,45 1,75M2,3×0,4 1,9M2,5×0,45 2,1M2,6×0,45 2,2M3,0×0,5 2,5M3,5×0,6 2,9M4,0×0,7 3,3M4,5×0,75 3,7M5,0×0,8 4,2M6,0×1 5M7,0×1 6M8,0×1,25 6,8M9,0×1,25 7,8M10×1,5 8,5M11×1,5 9,5M12×1,75 10,3M14×2 12M16×2 14M18×2,5 15,5M20×2,5 17,5M22×2,5 19,5M24×3 21M27×3 24M30×3,5 26,5M33×3,5 29,5M36×4 32M39×4 35M42×4,5 37,5M45×4,5 40,5M48×5 43

M ø mm

0 –80 1,251–72 1,552–64 1,853–56 2,14–48 2,45–44 2,76–4 2,98–36 3,510–32 4,112–28 4,61/4–28 5,55/16–24 6,93/8–24 8,57/16–20 9,91/2–20 11,59/16–18 12,95/8–18 14,53/4–16 17,57/8–14 20,51–12 23,31 1/8–12 26,51 1/4–12 29,51 3/8–12 32,71 1/2–12 36

UNF ø mm1–64 1,552–56 1,83–48 2,14–4 2,35–4 2,66–32 2,88–32 3,510–24 3,912–24 4,51/4–20 5,25/16–18 6,63/8–16 87/16–14 9,41/2–13 10,759/16–12 12,255/8–11 13,63/4–10 16,57/8–9 19,51–8 22,251 1/8–7 251 1/4–7 28,251 3/8–6 30,81 1/2–6 341 3/4–5 39,52–4,5 45,25

UNC ø mm

MF2×0,25 1,75MF2,5×0,35 2,2MF3×0,35 2,7MF3,5×0,35 3,2MF4×0,5 3,5MF4×0,35 3,7MF5×0,5 4,5MF6×0,75 5,3MF6×0,5 5,5MF7×0,75 6,3MF7×0,5 6,5MF8×1 7MF8×0,75 7,3MF8×0,5 7,5MF9×1 8MF9×0,75 8,3MF10×1,25 8,8MF10×1 9MF10×0,75 9,3MF10×0,5 9,5MF11×1 10MF12×1,5 10,5MF12×1,25 10,8MF12×1 11MF12×0,75 11,3MF12×0,5 11,5MF13×1 11,9MF14×1,5 12,5MF14×1,25 12,8MF14×1 13MF14×0,5 13,4MF15×1,5 13,5MF15×1 14MF16×1,5 14,5MF16×1,25 14,8MF16×1 15MF17×1,5 15,5MF17×1 16MF18×2 16MF18×1,5 16,5MF18×1 17MF20×2 18

ø mmMF

Metrické ISO závity

Americké závity

MF20×1,5 18,5MF20×1 19MF22×2 20MF22×1,5 20,5MF22×1 21MF24×2 22MF24×1,5 22,5MF24×1 23MF25×2 23MF25×1,5 23,5MF25×1 24MF26×2 24MF26×1,5 24,5MF27×2 25MF27×1,5 25,5MF27×1 26MF28×2 26MF28×1,5 26,5MF28×1 27MF30×3 27MF30×2 28MF30×1,5 28,5MF30×1 29MF32×2 30MF32×1,5 30,5MF33×3 30MF33×2 31MF33×1,5 31,5MF34×1,5 32,4MF35×2 33MF35×1,5 33,5MF36×3 33MF36×2 34MF36×1,5 34,5MF38×1,5 36,5MF39×3 36MF39×2 37MF39×1,5 37,5MF40×3 37MF40×2 38MF40×1,5 38,5

MF ø mm

MF8×1 7.55MF10×1,25 9,5MF10×1 9,55MF12×1,5 11,4MF12×1,25 11,5MF12×1 11,6MF14×1,5 13,4MF14×1 13,6MF16×1,5 15,4MF16×1 15,6MF18×1,5 17,4MF20×1,5 19,4

MF ø mm

2–56 1,932–64 1,973–48 2,223–56 2,274–40 2,534–48 2,585–40 2,865–44 2,896–40 3,116–32 3,198–32 3,778–36 3,8110–24 4,310–32 4,4312–24 4,9612–28 5,031/4–20 5,781/4–28 5,94

UNC/UNF ø mm

Rozměry předvrtaných otvorů pro závity

Pro vložky HelicoilG1/8×28 8,75G1/4×19 11,8G3/8×19 15,25G1/2×14 19G5/8×14 21G3/4×14 24,5G7/8×14 28,25G1×11 30,75G1 1/8×11 35,2G1 1/4×11 39,2G1 3/8×11 42G1 1/2×11 45,2G1 5/8×11 49,6G1 3/4×11 51,2G2×11 57,2

G ø mm

2–64 2,33–56 2,654–48 35–44 3,36–40 3,78–36 4,410–32 5,11/4–28 6,65/16–24 8,253/8–24 9,87/16–20 11,51/2–20 13,15/8–18 16,253/4–16 19,5

EG UNF ø mm

2–56 2,33–48 2,74–40 3,15–40 3,46–32 3,88–32 4,410–24 5,212–24 5,81/4–20 6,75/16–18 8,43/8–16 107/16–14 11,61/2–13 13,35/8–11 16,53/4–10 19,75

EG UNC ø mm3×0,5 3,14×0,7 4,25×0,8 5,26×1 6,38×1,25 8,410×1,5 10,510×1,25 10,410×1 10,312×1,75 12,512×1,5 12,512×1,25 12,514×2 14,514×1,5 14,514×1,25 14,416×2 16,516×1,5 16,518×2,5 18,818×1,5 18,520×2,5 20,820×1,5 20,522×2,5 22,822×1,5 22,424×3 2524×1,5 24,5

EG M • MF ø mmG1/8 9,2G1/4 12,4G3/8 15,9G1/2 19,9

G ø mm2–56 1,83–48 2,054–4 2,35–4 2,656–32 2,858–32 3,510–24 3,9312–24 4,61/4–20 5,255/16–18 6,73/8–16 8,17/16–14 9,51/2–13 10,99/16–12 12,35/8–11 13,73/4–10 16,75

UNJC ø mm2–64 1,853–56 2,14–48 2,45–44 2,76–40 38–36 3,5510–32 4,1512–28 4,71/4–28 5,555/16–24 73/8–24 8,867/16–20 9,981/2–20 11,579/16–18 135/8–18 14,5

UNJF ø mm

1/16×32 1,23/32×48 1,91/8×40 2,555/32×32 3,23/16×24 3,71/4×20 5,15/16×18 6,53/8×16 7,97/16×14 9,251/2×12 10,59/16×12 12,15/8×11 13,53/4×10 16,37/8×9 19,251×8 221 1/8×8 24,751 1/4×7 27,81 3/8×6 30,31 1/2×6 33,5

BSW ø mm

A) s použitím záhlubníkuB) bez použití záhlubníku

Řezací závitníkyTvářecí závitníky

1/16–27 5,94 6,151/8–27 8,33 8,431/4–18 10,72 11,133/8–18 14,27 14,271/2–14 17,48 17,863/4–14 22,63 23,011–11,5 28,58 28,981 1/4–11,5 37,31 37,691 1/2–11,5 43,26 43,662–11,5 55,17 55,58

NPT-NPTF ø mmA B

ø mmRc1/16–28 6,1 6,2Rc1/8–28 8,1 8,2Rc1/4–19 10,7 11Rc3/8–19 14,2 14,5Rc1/2–14 17,6 18Rc3/4–14 23 23Rc1–11 29 29Rc1 1/4–11 37,5 37,5Rc1 1/2–11 43,4 43,4Rc2–11 54,9 54,9

Rc ø mmA B

ø mm

Pg7 11,4Pg9 14Pg11 17,25Pg13,5 19Pg16 21,25Pg21 27Pg29 35,5Pg36 45,5Pg42 52,5Pg48 58

Pg ø mm

Ostatní závity