ISO INTERNATIONAL STANDARD 8750 Third edition 2007-04-15 Spring-type straight pins Coiled, standard duty Goupilles élastiques spiralees-Seriemoyenne Reference number ISO 8750:2007(E) TSO ii Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75%of thememberbodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 8750 was prepared by Technical Committee ISO/TC 2,Fasteners,Subcommittee SC10,Product standardsforfasteners. This third edition cancels and replaces the second edition (ISO 8750:1997), which has been technically revised. blank Spring-type straight pins Coiled, standard duty Scope This International Standard specifies the characteristics of coiled, standard duty spring-type straight pins made of steel or of austenitic or martensitic stainless steel, with a nominal diameter, dg, from O,8 mm to 20 mm inclusive. NOTE ofISO8748andISO8751,respectively. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)applies. ISO286-2,Iso system of limits and fits-Part2:Tables of standard tolerancegrades and limit deviations for holesandshafts IsO3269,Fasteners—Acceptanceinspection Iso4042,Fasteners-Electroplatedcoatings ISO8749,Pinsandgroovedpins-Sheartest 3 Dimensions See Figure 1 and Table 1. P Swagedchamferatbothends. Figure 1 Table1Dimensions Dimensions inmillimetres nom. 1,5 0,8 1 1,2 2 2,5 3 3,5 4 5 6 8 10 12 14 16 20 2,25 2,78 3,84 4,4 5,50 21,1 before max. 0,91 1,15 1,35 1,73 3,30 6,50 8,63 10,8012,85 14,95 17,00 d, 1,62 2,13 2,65 3,15 3,67 5,25 6,25 8,30 14,45 20,4 mounting min. 0,85 1,05 1,25 4,2 10,3512,40 16,45 before 1,4 1,9 2,4 2,9 3,4 3,9 4,85 5,85 7,8 9,75 11,7 d2 0,75 0,95 1,15 13,6 max. 15,6 19,6 mounting a 0,3 0,3 0,4 0,5 0,7 0,7 0,9 1,1 1,3 1,5 2 2,5 3,5 4,5 3 0,07 0,08 0,1 0,13 0,17 0,21 0,25 0,29 0,33 0,42 0,5 0,67 0,84 1,2 1,3 1,7 s Minimum shear 0,4 0,6 0,9 1,45 2,5 3,9 5,5 7,5 9,6 15 22 39 62 89 120 155 250 strength, b 0,3 11,5 16,8 30 48 double, kN 0,45 0.65 1,05 1.9 2,9 4,2 5,7 7,6 67 nom. min. max. 4 3,75 4,25 5 4,75 5,25 6 5,75 6,25 8 7,75 8,25 10 9,75 10,25 12 11,5 12,5 14 13,5 14,5 16 15,5 16,5 18 17,5 18,5 20 19,5 20,5 21,5 Range 22 22,5 24 23,5 24,5 26 25,5 26,5 28 27,5 28,5 of 30 29,5 30,5 32 31,5 32,5 35 34,5 35,5 commercial 40 39,5 40,5 45 44,5 45,5 50 49,5 50,5 lengths 55 54,25 55,75 60 59,25 60,75 65 64,25 65,75 70 69,25 70,75 75 74,25 75,75 80 79,25 80,75 85 84,25 85,75 90 89,25 90,75 95 94,25 95,75 100 99,25 100,75 120 119,25 120,75 140 139,25 140,75 160 159,25 160,75 179,25 180,75 180 200 199,25 200,75 Applies to steel and martensitic corrosion-resistant steel products Applies to austenitic stainless steel products. For nominal lengths above 200 mm, steps of 20 mm 2 4 Application The diameter of the hole into which the spring pin is to be inserted shall be equal to the nominal diameter, dg: of 1,2 mm and below, the tolerance class of the hole diameter shall be H10 in accordance with IsO 286-2. 5 Requirements and reference International Standards See Table 2. Table2RequirementsandreferenceInternationalStandards Austenitic Martensitic Steel stainless steel stainless steel St A c All pin diameters Alternative for pin Chemical composition limits diameters d, >12 mm (chemical analysis) % Chemical compositio