91430 SPS cover edited - Electronic Fasteners Inc

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TYPICAL TENSION IMPACT STRENGTH,EFFECT OF FASTENER STRENGTH AND DIAMETERROOM TEMPERATUREUNBRAKO ENGINEERINGChart No.Date:180160TENSION IMPACT LBF.-FT.14012010080603/85/1640201/4120 140 160 180200 220FASTENER RATED ULTIMATE TENSILE STRENGTH – KSIFIG. 2278
PRODUCT ENGINEERING BULLETINUNBRAKO PRODUCT ENGINEERING BULLETINStandard Inch Socket Head Cap ScrewsAre Not Grade 8 FastenersThere is a common, yet reasonable, misconceptionthat standard, inch, alloy steel socket head capscrews are “Grade 8”. This is not true. The misconceptionis reasonable because “Grade 8” is a termgenerally associated with “high strength” fasteners.A person desiring a “high strength” SHCS mayrequest a “Grade 8 SHCS”. This is technicallyincorrect for standard SHCSs. The term Grade 8defines specific fastener characteristics which mustbe met to be called “Grade 8”. Three of the mostimportant characteristics are not consistent withrequirements for industry standard SHCSs: tensilestrength, hardness, and head marking. Some basicdifferences between several fastener classificationsare listed below. The list is not comprehensive butintended to provide a general understanding.SHCSs can be manufactured to meet Grade 8requirements on a special order basis.Fastener Industry UnbrakoDesignation Grade 2 Grade 5 Grade 8 SHCS SHCSApplicable SAE SAE SAE ASTM ASTMStandard J429 J429 J429 A574 A574SPS-B-271Strength 74 120 150 180 190Level, UTS (1/4-3/4) (1/4 - 1) (1/4 - 11/2) (≤1/2) (≤ 1/2)KSI, min. 60 105 170 180(7/8 - 1 1/2) (1 1/8 - 1 1/2) (> 1/2) (> 1/2)Hardness, B80-B100 C25-C34 C33-C39 C39-C45 C39-C43Rockwell B70-B100 C19-C30 C37-C45 C38-C43General Low or Medium Medium Medium Medium MediumMaterial Type Carbon Steel Carbon Steel Carbon Alloy Carbon Alloy Carbon AlloySteel Steel SteelIdentification None Three Radial Six Radial SHCS Mfr’s IDRequirement Lines Lines ConfigurationTypical Bolts Screws Bolts Screws Bolts Screws Socket Head Socket HeadFasteners Studs Hex Heads Studs Hex Heads Studs Hex Heads Cap Screws Cap Screws79
Page 1 and 2:
Engineering GuideInch & Metric
Page 3 and 4:
TABLE OF CONTENTSUNBRAKO ® Socket
Page 5 and 6:
INCH QUICK SELECTOR GUIDEPERFORMANC
Page 8 and 9:
SOCKET HEAD CAP SCREWS 1960 Series
Page 10 and 11:
SOCKET HEAD CAP SCREWS 1960 Series
Page 12 and 13:
FEWER HOLES TO DRILL AND TAPthree s
Page 14 and 15:
SHOULDER SCREWS Dimensions Mechan
Page 16 and 17:
FLAT HEAD SOCKET SCREWSDimensionsDe
Page 18 and 19:
FLAT HEAD AND BUTTON HEAD SOCKET SC
Page 20 and 21:
SOCKET SET SCREWS Dimensions Appl
Page 22 and 23:
SOCKET SET SCREWS Point Selection
Page 24 and 25:
SOCKET SET SCREWS Torisional and A
Page 26 and 27:
PRESSURE PLUGSDRYSEAL TYPE with 3/4
Page 28 and 29:
PRESSURE PLUGS Application DataPre
Page 30 and 31: DOWEL PINS Dimensions Application
Page 32 and 33: PULL-OUT DOWEL PINS Dimensions Ap
Page 34 and 35: HEX KEYS Dimensions Mechanical Pr
Page 36 and 37: THREAD CONVERSION CHARTSDIAMETER/TH
Page 38 and 39: UNBRAKO Metric FastenersUNBRAKO Met
Page 40 and 41: METRIC SOCKET HEAD CAP SCREWSDimens
Page 42 and 43: METRIC SOCKET FLAT HEAD CAP SCREWSD
Page 44 and 45: METRIC SOCKET HEAD SHOULDER SCREWST
Page 46 and 47: METRIC SOCKET SET SCREWS Knurled C
Page 48 and 49: METRIC LOW HEAD CAP SCREWSThreads:
Page 50 and 51: ISO TOLERANCES FOR METRIC FASTENERS
Page 52 and 53: CONVERSION CHARTSI UNITS & CONVERSI
Page 54 and 55: INSTALLATION CONTROLSeveral factors
Page 56 and 57: Their disadvantages are… lower te
Page 58 and 59: AN EXPLANATION OF JOINT DIAGRAMSWhe
Page 60 and 61: A s = π (D 2 H - D 2 h )Effect of
Page 62 and 63: F 1F 1Fig. 10 Force diagrams show t
Page 64 and 65: TIGHTENING TORQUES AND THETORQUE-TE
Page 66 and 67: STRIPPING STRENGTH OF TAPPED HOLESC
Page 68 and 69: THREAD STRIPPING STRENGTHIN VARIOUS
Page 70 and 71: HIGH-TEMPERATURE JOINTSBolted joint
Page 72 and 73: mine the clamping stress at assembl
Page 74 and 75: Electroplating: Two broad classes o
Page 76 and 77: GALVANIC CORROSIONMMMMMM M M M M M
Page 78 and 79: TABLE 20LOW-TEMPERATURE IMPACT PROP
Page 82 and 83: THREADS IN BOTH SYSTEMSThread forms
Page 84 and 85: THROUGH-HOLE PREPARATIONClose Fit:
Page 86 and 87: HARDNESS - TENSILE CONVERSIONINCHRO
Page 88 and 89: ENGINEERING PART NUMBERS - INCHUnbr
Page 90 and 91: PRESSURE PLUG PART NUMBERSBasic Par
Page 92: INDUSTRIAL FASTENERS GROUPUnbrakoTh
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91430 SPS cover edited - Electronic Fasteners Inc

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