M2.5 16mm Cheese Head Machine Screw Zinc Plated, Pack of 100 Dimensions: Raised cheese head screw, with unthreaded Raised cheese head screw, threaded up to the head portion of shank* (above the stepped line in the table) (below the stepped line in the table) The shank diameter may be equal to the thread diameter (major diameter) (normal shank) pr approximately equal to the pitch diameter (reduced shank) If raised cheese head screws are to be supplied with length as given below the stepped line and threaded up to the head, i.e. deviating from the standard design, then symbol A is to be incorporated in the designation in accordance with the product or the deviating thread length is to be included in the designation, again in accordance with the product. +2 (the tolerance on the thread length being normally P) 0 www.element14.com www.farnell.com www.newark.com www.cpc.co.uk www.mcmelectronics.com Page <1> 16/01/15 V1.0M2.5 16mm Cheese Head Machine Screw Zinc Plated, Pack of 100 Thread size d M2.5 1) P 0.45 +2 a Max. 0.9 P 0 b 18 d Max. 3.1 a Max. = nominal 5 dimension d k Min. 4.7 Nominal dimension 2 k Max. 2.12 Min. 1.88 r Min. 0.1 r1 5 v 1.3 x Max. 1.1 No. 1 m 2.7 Type H Min. 1.3 Penetration Cross depth Max. 1.6 recess m 2.6 Type Z Min. 1.27 Penetration depth Max. 1.52 Nominal Min. Max. Mass (7,85kg/dm3), in kg per 1,000 units, approxinately dimension 2 1.8 2.2 - 3 2.8 3.2 0.34 4 3.75 4.25 0.37 5 4.75 5.25 0.4 6 5.75 6.25 0.43 8 7.7 8.3 0.49 10 9.7 10.3 0.55 12 11.65 12.35 0.61 (14) 13.65 14.35 0.67 16 15.65 16.35 0.73 (18) 17.65 18.35 0.79 20 19.6 20.4 0.85 (22) 21.6 22.4 0.91 25 24.6 25.4 1 (28) 27.6 28.4 1.09 www.element14.com www.farnell.com www.newark.com www.cpc.co.uk www.mcmelectronics.com Page <2> 16/01/15 V1.0