Socket Products Engineering Guide - Industrial and Bearing Supplies

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SHOULDER SCREWS Dimensions Mechanical Properties Seating TorquesPrecision hex socket for maximum wrenching strengthKnurled head for sure finger grip and fast assemblyNeck to allow assembly with minimal chamferingControlled concentricity between head and body for easier, moreaccurate assemblyShoulder diameter held to .002 inch toleranceConcentricity controlled between body and threadFinished threads close to body for maximum holding powerHead sidewall may have straight knurls at mfrs. optionTF32IEUNBAK D GJHLENGTH± .00545°APPROX.DIMENSIONSthreadsnom.per inchA D T H J K Gshoulder threaddiameter size UNRC max. min. max. min. min. max. min. nom. min. max. min.1/4 .190 24 .375 .357 .248 .246 .094 .188 .177 .125 .227 .142 .1335/16 .250 20 .438 .419 .3105 .3085 .117 .219 .209 .156 .289 .193 .1823/8 .312 18 .562 .543 .373 .371 .141 .250 .240 .188 .352 .249 .2371/2 .375 16 .750 .729 .498 .496 .188 .312 .302 .250 .477 .304 .2915/8 .500 13 .875 .853 .623 .621 .234 .375 .365 .312 .602 .414 .3973/4 .625 11 1.000 .977 .748 .746 .281 .500 .490 .375 .727 .521 .5021 .750 10 1.312 1.287 .998 .996 .375 .625 .610 .500 .977 .638 .6161-1/4 .875 9 1.750 1.723 1.248 1.246 .469 .750 .735 .625 1.227 .750 .7261-1/2 1.125 7 2.125 2.095 1.498 1.496 .656 1.000 .980 .875 1.478 .964 .9341-3/4 1.250 7 2.375 2.345 1.748 1.746 .750 1.125 1.105 1.000 1.728 1.089 1.0592 1.500 6 2.750 2.720 1.998 1.996 .937 1.250 1.230 1.250 1.978 1.307 1.277NOTE: Performance data listed are for standard production items only. Non-stock items may vary due to variables in methods of manufacture.It is suggested that the user verify performance on any non-standard parts for critical applications.12
SHOULDER SCREWSDimensions Mechanical Properties Seating TorquesAPPLICATIONSstationary guide moving shaft or pivot pulley shaft usesShoulder screws have an undercutportion between the thread andshoulder, allowing a close fit. They’reused for a wide range of punch anddie operations, such as the locationand retention of stripper plates, andact as a guide in blanking and formingpresses. Other applications forshoulder screws include: bearing pinsfor swing arms, links and levers,shafts for cam rolls and other rotatingparts, pivots, and stud bolts. Shoulderscrews are sometimes referred to asstripper bolts, resulting from their usewith stripper plates and springs.MECHANICAL PROPERTIES AND SEATING TORQUESsingle recom.-*E F I T ult. shear mendedtensile strength seatingthread +.000 strength of body torquelength max. max. –.020 lbs. min. lbs. min. inch-lbs..375 .093 .083 .094 2,220 4,710 45.438 .093 .100 .117 4,160 7,360 112.500 .093 .111 .141 7,060 10,500 230.625 .093 .125 .188 10,600 18,850 388.750 .093 .154 .234 19,810 29,450 990.875 .093 .182 .281 31,670 42,410 1,9751.000 .125 .200 .375 47,680 75,400 3,4901.125 .125 .222 .469 66,230 117,800 5,6101.500 .125 .286 .656 110,000 169,500 12,0001.750 .125 .286 .750 141,000 231,000 16,0002.000 .125 .333 .937 205,000 301,500 30,000*See Note, page 1NOTESMaterial: ANSI/ASME B18.3,ASTM A574 – alloy steelHeat treatment: Rockwell C 36-43; 160,000 psi tensile strength.Dimensions: ANSI/ASME B18.3Concentricity: Head to body – within .005 T.I.R. when checked in“V” block equal to or longer than body length. Pitch diameter tobody – within .004 T.I.R. when held in threaded bushing andchecked at a distance of 3/16” from shoulder at threaded end.Shoulder must rest against face of shoulder of standard “GO” ringgage. Bearing surface of head – perpendicular to axis of body within2° maximum deviation.Tensile strength based on minimum neck area “G.” Shear strengthbased on shoulder diameter “D.”Thread class: 3AScrew point chamfer: The point shall be flat or slightly concave,and chamfered. The plane of the point shall be approximately normalto the axis of the screw. The chamfer shall extend slightlybelow the root of the thread, and the edge between flat andchamfer may be slightly rounded. The included angle of the pointshould be approximately 90°.13
Page 1 and 2: Engineering GuideSocket Products
Page 3 and 4: TABLE OF CONTENTSUNBRAKO ® Socket
Page 5 and 6: INCH QUICK SELECTOR GUIDEPERFORMANC
Page 7 and 8: SOCKET HEAD CAP SCREWSWhy Socket Sc
Page 9 and 10: SOCKET HEAD CAP SCREWS1960 Series
Page 11 and 12: SOCKET HEAD CAP SCREWS1960 Series
Page 13: LOW HEAD CAP SCREWSSOCKET HEAD CAP
Page 17 and 18: BUTTON HEAD CAP SCREWSDimensionsPre
Page 19 and 20: SQUARE HEAD SET SCREWSDimensions A
Page 21 and 22: SOCKET SET SCREWSDimensions Applic
Page 23 and 24: SOCKET SET SCREWSPoint Selection Ac
Page 25 and 26: SOCKET SET SCREWSTorsional and Axia
Page 27 and 28: PRESSURE PLUGSLEVL SEAL ® TYPE Dry
Page 29 and 30: PRESSURE PLUGSPTFE/TEFLON-Coated LE
Page 31 and 32: DOWEL PINSDimensions Application D
Page 33 and 34: PULL-OUT DOWEL PINSDimensions Appl
Page 35 and 36: HEXAGON KEYSWhy UNBRAKO keys tighte
Page 37 and 38: TABLE OF CONTENTSUNBRAKO ® Socket
Page 39 and 40: A WARNING TO METRIC FASTENER USERSM
Page 41 and 42: SOCKET HEAD CAP SCREWS Metric Bod
Page 43 and 44: METRIC SOCKET BUTTON HEAD CAP SCREW
Page 45 and 46: METRIC DOWEL PINSHardened and Groun
Page 47 and 48: METRIC SOCKET SET SCREWFlat Point,
Page 49 and 50: METRIC HEXAGON KEYSDimensions Mech
Page 51 and 52: ISO TOLERANCESTolerances for Metric
Page 53 and 54: TABLE OF CONTENTSTechnical SectionP
Page 55 and 56: SCREW FASTENER THEORY & APPLICATION
Page 57 and 58: SCREW FASTENER THEORY & APPLICATION
Page 59 and 60: JOINT DIAGRAMSSpring ConstantsTo co
Page 61 and 62: JOINT DIAGRAMSF e2F e212nl jI j34F
Page 63 and 64: JOINT DIAGRAMSF eB = Φ F e must be
Page 65 and 66:
THE TORQUE-TENSION RELATIONSHIPFig.
Page 67 and 68:
STRIPPING STRENGTH OF TAPPED HOLEST
Page 69 and 70:
STRIPPING STRENGTH OF TAPPED HOLEST
Page 71 and 72:
HIGH-TEMPERATURE JOINTSF wF cF cF w
Page 73 and 74:
CORROSION IN THREADED FASTENERSAll
Page 75 and 76:
CORROSION IN THREADED FASTENERSFor
Page 77 and 78:
IMPACT PERFORMANCETHE IMPACT PERFOR
Page 79 and 80:
IMPACT PERFORMANCETYPICAL TENSION I
Page 81 and 82:
PRODUCT ENGINEERING BULLETINUNBRAKO
Page 83 and 84:
METRIC THREADSExample of thread tol
Page 85 and 86:
DRILL AND COUNTERBORE SIZESDRILL AN
Page 87 and 88:
THREAD STRESS AREASInch and MetricS
Page 89 and 90:
OPTIONAL PART NUMBERING SYSTEMPRESS
Page 91 and 92:
METRICHEX KEYS PART NUMBERS (METRIC
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Socket Products Engineering Guide - Industrial and Bearing Supplies

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