M25 Bolt Size

Din 963 slotted flat head countersunk machine screw.

M25 bolt size. Din 125 iso 7089 7090 flat washer. To avoid confusion we always include the thread pitch for both coarse and fine metric fasteners if you normally work with inch fasteners pitch can be a little confusing pitch is the distance between adjacent threads. Nominal diameter is more of a label than a size. In fact the bolt diameter is a little smaller and the nut diameter a little larger.

Fit class close. Din 127b lock washer. But neither the external threads of the bolt nor the internal threads of the nut are exactly 500 in diameter. M2 5 thread is tapped thru 9 6 mm in length m3 thread is tapped thru 12 7 mm in length.

Equivalent metric bolt substitution astm grade bolt sizes f 568 class 4 6 f 568 class 8 8 f 588 class 8 8 3 f 568 class 9 8 f 568 class 10 9 a 325m type 1 or 2 a 325m type metric english 3 mm inches hole diam mm english astm grade specified a 449 type 1 a 354 grade bd m6 m8 m10 m12 m14 1 4 5 16 7 16. M3 and larger thread is tapped thru 25 4 mm in length. Din 975 threaded rod. Din 933 iso 4017 hex cap screw fully threaded.

Fit class loose. All measurements in millimeters nominal size d body diameter head thickness across the flats across corners d max d min h max h min f max f min c max c min m10 10 00 9 78 6 63 6 17 17 00 15 73 18 48 17 77 m12 12 00 11 73 7 76 4 24 19 00 17 73 20 78 20 03 m14 14 00 13 73 9 09. 11320 fm 529 rd bldg f houston texas 77041 tel 713 896 1166 fax 713 896 7879 tool size chart inch fasteners metric fasteners wrench sizes in hex key sizes in wrench hex key sizes mm diameter hex heavy hex diameter socket diameter hex socket 1 4 7 16 1 1 16 m3 5 50 2 50. Stainless steel nylon parts.

For example a bolt and nut may be described as being diameter. Din 84 slotted cheese head machine screw. Brass aluminum steel parts. Metric clearance holes chart.

Din 934 hex nut. The designation of a screw thread gives the thread symbol the nominal size the pitch and the thread tolerance class ex. M2 5 thread is tapped thru 15 99 mm in length. Metric clearance hole chart for metric bolts and screws according to asme b18 2 8.

Hex key size. M6 x 1 4g6g. Size limits for standard external thread tolerance classes 6g and 4g6g apply prior to coating. M12 x 25 12 mm diameter coarse thread is assumed 1 75 mm 25 mm long.