1 2 13 0 1419 3831 9046 12771 14969 9 16 12 0 1819 4912 11599 16375 19193 5 8 11 0 2260 6102 14408 20340 23840 3 4 10 0 3345 9030 21322 30101 35281 7 8 9 0 4617 12467 29436 41556 48707 1 8 0 6057 16355 38616 54517 63899 1 1 4 7 0 9691 26166 53786 87220 102229 1 1 2 6 1 4053 37942 77991 126473 148237The BS 3692 Grade 8 8 Hex Bolt and others in the 8 8 grade come with different lengths ranging from 20mm to 100mm and different finishes There could be zinc plated hot dip galvanized or plain types of bolts The M20 Grade 8 8 Galvanised Bolts are dipped into the galvanizing solution and get a galvanized coating The products are used in a variety of industrial Choose from our selection of 1 quot 8 bolts in a wide range of styles and sizes In stock and ready to ship 15 rows nbsp 0183 32 Grade 8 Medium Carbon Alloy Steel Quenched and Tempered up to 1 1 2 quot proof load 120000 SAE bolt grades indicate the strength of the bolt Each bolt grade has an ideal tightening torque for maximum clamping force without breaking Grade 2 bolts are cheap but not very strong grade 8 bolts are the strongest and most expensive and grade 5 bolts are the most common Refer to the charts to find the ideal tightening torque

Home gt Shop gt Inch Flange Bolts gt HEX FLANGE BOLTS GRADE 8 gt 1 2 13x3 Hex Flange Bolt Grade 8 Zinc Yellow View Product Spec Sheet Diameter Pitch 1 2 quot 13 Length Under Head 3 quot Coarse Fine Threads Coarse Threads Grade Grade 8 The best known grades for inch sized steel bolts are those defined by the SAE a sequence of grades from 0 to 8 on the basis of the metal from which the bolt is made and the manner of manufacture Available grades run from 2 to 8 with 8 the strongest Higher grade numbers almost always mean increased strength an exception is that some grade Torque Tension Relationship for A307A Grade 5 8 amp 9 Bolts in sq in Lbs Lbs Lbs Lbs 1 4 20 0 0318 859 32 in lbs 37 in lbs 43 in lbs 2029 76 in lbs 86 in lbs 101 in lbs 2864 107 in lbs 122 in lbs 143 in lbs 3357 126 in lbs 143 in lbs 168 in lbsPricing Options 1 4 20X2 1 2 Hex Flange Bolt Grade 8 Zinc Yellow Pricing Options 1 4 20X3 Hex Flange Bolt Grade 8 Phos amp Oil Pricing Options 1 4 20X3 Hex Flange Bolt Grade 8 Zinc Yellow Pricing Options 5 16 18X1 2 Hex Flange Bolt Grade 8 Phos amp Oil Pricing Options 27 3 2020 nbsp 0183 32 Facebook Twitter The shear strength of a grade 8 bolt is 90 000 psi assuming the bolt is between 1 4 inch to 1 inch Shear strength is typically estimated to be 60 percent of tensile strength The tensile strength of a grade 8 bolt is at least 150 000 psi All grade 8 bolts have the same tensile strength per square inch

Tightening Torque Guide for Grade 5 amp 8 Hex Cap Screws This table is based on IFI 5th Edition Technical Data N 12 N 16 using Equation 1 and a torque coefficient K 0 20 for non plated steel fasteners and K 0 15 for plated fasteners These Figures represent an estimate of torque torque being the measurement of friction not tension required to induce given preload Grade 8 Bolts and fasteners are comprised of carbon alloy steel heat treated in a carbon controlled atmosphere and are generally the most durable and reliable fastener Grade 8 bolts have the highest ratings with tensile strength of 150 000 psi Grade 8 bolts are used marine military aerospace off road vehicle markets and related mechanical Grade 8 Hex Bolts fine thread a k a Grade 8 hex cap screws fine thread are medium carbon alloy tempered steel bolts used where hardness and high strength is desired and available in 1 4 28 thru 1 amp quot 14 diameters and 1 2 amp quot thru 12 amp quot lengths The hardness of the medium carbon steel Metric Grade 8 8 can be increased by heat treating them Heat treating the En 15048 Grade 8 8 leads to a change in the mechanical fasteners For instance the Class 8 8 Bolts have an increased hardness ductility yield strength and impact resistance Heat treated Grade 8 8 Bolt is known to exhibit good tensile strength and perform 15 10 2021 nbsp 0183 32 1 in x 3 in Yellow Zinc Grade 8 Hex Bolt 2 per Bag These yellow zinc plated hex bolts are among These yellow zinc plated hex bolts are among the strongest grade of fastener available in steel These screws are compatible with grade 8 nuts and washers of the same thread pitch and diameter

1 2 quot 13 Grade 8 Hex Cap Screws COARSE Thread USS Hex Bolts Pick Length amp Qty 21 18 to 169 49 2 510 piece Grade 8 Fine Thread Nut Bolt amp Washer Assortment with Metal Bolt Bin27 3 2020 nbsp 0183 32 The shear strength of a grade 8 bolt is 90 000 psi assuming the bolt is between 1 4 inch to 1 inch Shear strength is typically estimated to be 60 percent of tensile strength The tensile strength of a grade 8 bolt is at least 150 000 psi All grade 8 bolts have the same tensile strength per square inch Leaf Spring U Bolt Kits For Heavy Trucks Medium and Light Duty Trucks And Auto Applications Leaf Spring U Bolts Are Available From Grade 5 U Bolts To Grade 8 U Bolts We Supply Round UBolts Square U Bolts And Semi Round U Bolt Kits Complete Heavy Hex Bolts Grade 5 Plain inch Hex Bolt Grade 8 Plain USA inch Hex Bolts A307 Grade A HDG Low Carbon inch Hex Bolts A307 Grade A Plain Low Carbon inch Hex Bolts A307 Grade A Zinc Low Carbon inch Hex Bolts A307 Grade A Zinc Yellow inch Hex Cap Screws Grade 2 Hex Cap Screws Grade 2 Hex Head Cap Screw Plain inch These hex bolts meet the requirements of both F1554 Grade 36 and A307 Grade A 7 8 diameter bolts meet A307 Grade A and F1554 Grade 55 not F1554 Grade 36 Other sizes and finishes available on request Stock Import Hex Bolts Length in Diameter 1 2 quot 5 8 quot 3 4 quot 7 8 quot 1 quot Plain Galv Plain Galv Plain Galv Plain Galv Plain Galv 1

Grade 8 USS Nut Bolts Kit VIGRUE 232PCS Heavy Duty Bolt Nut Washer Assortment 1 4 20 5 16 18 3 8 16 Hex Head Cap Screws Bolt Flat and Lock Washer Kit Coarse Thread 4 6 out of 5 stars 188 29 99 29 99 0 13 Count These are Heavy Duty Grade 8 Alloy Steel with black oxide Diameter 1 4 quot Thread Size 20 Coarse Standard Thread Length Please select from drop down menu above 1 2 quot 1 quot Full Thread 1 1 4 quot and up partial as pictured Wrench Size 7 16 quot Type Hex Cap Bolt Screw Matching Nut amp amp Washers 1 4 20 Available here System of Measurement U S Inch For example a 1 2 inch grade 8 bolt with 13 threads per inch has an effective stress carrying cross section of 0 1419 square inches so its breaking load would be 0 1419 area subject to stress x 150 000 tensile strength 21 285 pounds Grade 8 bolts have a tensile strength of 150 000 pounds per square inch We recommend using grade 8 nuts flat washers and high alloy lock washers with any grade 8 bolts hex cap screws Grade 8 Bolts Strength and Durability The factor that makes a grade 8 bolt different from a lower grade bolt is its preload strength In the event your use of this calculator results in the need for servicing repair or correction of equipment or data you assume any costs or expense for such needs I accept the terms and conditions set forth above Standard Non Structural Bolts Bolt Diameter in 1 4 5 16 3 8 7 16 1 2 9 16 5 8 3 4 7 8 1 1 1 8 1 1 4 1 3 8 1 1 2

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