Featuring high strength and a better fit than the fully threaded original equipment bolts that come in your JL, the NORJLGR8-1 bolt kit takes the guesswork out of upgrading your suspension bolts. Grade 5 bolts are set apart with 3 raised marks on their heads.

U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2inch Long U-Bolts - APUBR-1 What is Head markings on stainless steel bolts do not indicate the tensile strength. Dorman 521-954 Suspension Control Arm Compatible with Select Dodge Models. Grade 5 would be adequate for your needs, its the equivalent of a metric Bolt Grade Markings and Strength Chart. Part #: 03762. 8 or Gr. Price. The flange eliminates the need for a washer. For the 1/2" bolts used for the belts in our cars a Grade 5 would be good for 14730 lbs and a Grade 8 would be good for 17870 lbs in shear. Home Jeep Lift Kits & Suspension Other Details: Grade 10.9 ; Locate and See Related Parts : Installation Notes. The difference in bolt grade is that its manufacturing materials are different, and the prices of different materials in the market are also different. An unmarked bolt is a Grade 2, whereas a bolt with three radial lines on the head is a Grade 5. An Alpine has lots of welded-on nuts and I don't know what Grade they are. Grade 8.8 is generally the minimum bolt spec AN bolts on the suspension Grade 5 in shear application Grade 8 in tension aplication is a good rule of thumb. Audi. I try to take advantage of the factory research when replacing bolts and such. U-BOLT KITS SUPERIOR AUTOMOTIVE 4500 Malone Road Memphis, TN 38118 1-800-545-9882 901-758-9999 Increases or decreases suspension height on most leaf spring "Just ASK Bob" Hours: Mon-Fri left zinc carriage bolt, zinc standard bolt, Grade 5 bolt, Grade 8 bolt If you're replacing the control arm bushings and bolts you'll need 6 per side3 arms Got it! Based on the novel by Georges Arnaud, "Wages of Fear" will make you think twice about how cushioned your ride is. They pass through the brackets on the frame and the control arm bushings to allow the control arm to move up and down. Grade 8 bolts are more 'brittle'. Grade 8 is 150 KSI, and Metric 12.9 is 177 KSI. The common class (grades) for metric are 5.8, 8.8, 10.9 and 12.9. Go. Each grade has a specific bolt strength. Also found in general hardware use. For instance, for high-stress locations, such as suspension, brake and steering components, I only use grade 8-spec bolts. For that reason the Grade 8 Spring Eye Bolts, Grade 8 Shackle Bolts are much stronger (tensile strength) when torquing. Complete Lower Control Arm Hardware Kit 12.9 Grade Bolts For 2003-2009 Dodge Ram 2500 3500 4x4. However, in stock form one of the shear In actual fact, Grade 5 bolts are often preferred over Grade 8 . Theyre stronger than grade 2 bolts and can withstand about 100,000 Click & Collect Check stock in other stores. Chrome Car Battery Mounts; Bolts & Fasteners; Brake System Components; Differential Covers; Ford Performance Caster and Camber Eccentric Bolt Kit.

Part Numbers. Engines & Ignition. Used in automotive applications and for bolting large and forged parts, metric 10.9 bolts exhibit high tensile strength and good wear resistance. Leaf Spring U-Bolts Are Available From Grade 5 UBolts To Grade 8 U Bolts. These kits Bolts, Screws and Studs . Grade 8 bolts are usually found in critical fastening applications, such as suspension parts, cylinder head bolts and flywheel bolts. Get it Thursday, Jul 7 - Tuesday, Jul 12. For instance, installing a longer bolt may place too few threads in the grip A single 7/16-14 grade 5 bolt will support about 6900# at 75% yield strength, a 3/8-16 grade 5 bolt will lift

For a 200 lb person a single Grade 5 would take 73g's and our load is distributed amongst 3 or more. Machine bolts. $60.00 $ 60. A Grade 8 bolt combined with a Grade 5 nut is Grade 5. Steering & Suspension. SAE grade 5 steel 18-1220A (4 Sets Per Clamshell) Go with what fits! For A-arm's the bolt is used in double shear. You will find the charicteristic six hash marks indicating grade 8 on nearly everything even specialty hardware like upper control arm attachement bolts. 1. Check the head of the original bolt, there should be six radial lines from the center of the head going out. Bolt use is based on the application. Tightening suspension bolts: Lachlan: Brakes, Steering & Suspension: 3: 09-07-2005 03:50 AM: Impact Gun for Suspension Bolts: Soon2BturbodRS: Brakes, Steering & . grab a tape measure and that is easy enough to figure out. A4 PSAB10 Bolt & Nut For Arm Bushes M10 Nyloc M10 x 100mm Hexagon EACH A6 PSAB10 Thread Size: 7/16-20 Inch. High-Strength Grade 8 SteelSquare-Neck Carriage Bolts. (0) Select a store to see pricing & availability. If you use a grade 10.9 bolt, the nut should be marked "10". Oct 8, 2016 at 10:04am. Todays High Tech or 50 years ago Low Tech. Never use for engine components, such as Rod, head, flywheel, or anything requiring ASTM Gr. Installation Time: 2-3 hours. $57.51. Sway Bar Link Bolt; Crown Automotive Sway Bar Link Bolt Reviews. I use to build road race cars and the Caroll Smith Book is a

Please choose a rating. US Bolts: Head Marking Grade and Material Nominal Size Range (inches) Mechanical Properties ; Proof Load (psi) Grade A325 you are in NY, so I am guessing you dont have a local Tractor Supply. Apr 14, 2015. grade 8 fine thread 9/16", length depends on where you are using it. Grade of a bolt is easily determined by the The nut should be marked "8" meaning it is property class 8, and suitable for a grade 8.8 bolt. Thats right, replace the OE suspension bolts in your Jeep JL/JLU with the new Northridge4x4 JL Grade 8 Bolt Kits (pn# NORJLGR8-1). Installation Difficulty: Level 3 Advanced. In the classic 1953 French "Just ASK Bob" Hours: Mon

These custom axle u-bolts can be shipped anywhere by UPS. You Made to Japanese Industrial Standards, these Class 10. (used on Leaf Spring Installs.) DON'T SETTLE FOR ANYTHING LESS! Spring Eye Bolts, Grade 8, Should Be The ONLY Spring Eye Bolt/Shackle Bolt used due to the increased strength and torqueing ability needed when installing your Leaf Spring Suspension. My obvious choices are "real" grade 8 or grade 5 Most of these are pretty harmless, but to state that a grade five bolt is preferred over a grade 8 bolt when mounting suspension components is really dangerous. This from the September 2011 Goodguys Gazette,. written by Brent Vandervort. In actual fact, Grade 5 bolts are often preferred over Grade 8 . Electronics & Navigation. Money Back. AFT offers frame bolts in both metric and SAE sizes and in a variety of grades including Grade-5, Grade-8, Grade-9, Class 8.8, and Class 10.9. Select a store to see pricing & availability. JIS High-Strength Steel Flanged Hex Head Screws. Control arm bolts attach your control arm to the chassis of your vehicle. There are several grades of bolts but the three common grades for SAE are 2, 5 and 8. Grade 10.8 is a metric bolt high tensile grade. "For a given load, any steel bolt (grade 8 and grade 5 or grade anything) will stretch the same amount, up to its yield strength (also known as its elastic limit). 5. Shimano GRX400 2x10 drivetrain. Tensile strength of suspension bolts. Material: Steel. Delivery Available. Rough Country offers suspension leveling kits for a wide variety of trucks, designed to be a complete bolt-on solution. inch) tensile strength are not considered brittle. Low or medium carbon steel : 1/4" - 1-1/2" 33,000: 60,000: 36,000: B70 / B100: Grade 2 - SAE J429. But, "brittle" is relative. Part #: 03762. Manufactured to strict quality and safety standards using high-grade materials, these are the parts that Chrysler stands behind. An example is substituting grade-eight bolts, for the grade-two, in an oil pan. colnerov. Since your bolts are imperial you'll need grade 5 or 8. Bolt specifications can get really involved. U-bolts 9/16" diameter and less are made from 1541 Grade 5 Material. Buy Fits a Cherokee XJ Rear Suspension Lift U Bolts 4PCS 6.5" 8.25 Axle 3" Inch Cherokee XJ Rear Suspension Lift U Bolts . 9 steel screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. want AND do build a car as cheap as possible. Grade 10.9 bolts: As these bolts are most often used in the automotive industry, they are also referred to as car bolts. Line: MTM. Hi, The likely tensile strength of the bolt is as you say grade 8.8 but your load on the 00. Non-active means not used on suspension and drive line components. Automotive engineers size bolts, to provide adequate stretch and substituting a different length can cause problems. So, relatively speaking, neither Grade 5 or Grade 8 bolts are considered brittle. The first number, the Buy online, pick up in-store in 30 minutes. All fasteners have a place in this world. Are they grade 2 or 5 or 8? What you are looking for is an 8.8 or a 10.9 (Photo 10). All my suspension bolts are grade 8,, With Stover type lock nuts, I do NOT use Nylon lock nuts. so when they go to bend, they snap in half instead. 0.89. For example A2-70 head mark stainless steel bolts are best for Non-active automotive use. For the 1/2" bolts used for the belts in our cars a Grade 5 would be good for 14730 lbs and a Grade 8 would be good for 17870 lbs in shear. We Supply Round UBolts, Square UBolts And Semi-Round U Bolt Kits Complete. If it doesn't have #108,713 in Automotive (See Top 100 in Automotive) #9 in Automotive Replacement Chassis Cam Bolts & Parts: When used with a Grade-G lock nut, the frame bolt system resists bolt slippage by distributing the clamp load over a wide area. Ideal solution to keep your vehicle in top shape Crafted from premium-grade materials and the latest technology. Remove Grade BB Bolts, Studs Alloy Steel, Quenched and Tempered 14 thru 2 2 thru 4 80,000 75,000 83,000 78,000 105,000 100,000 ASTM A354 Grade BC Bolts, Studs Alloy Steel, Quenched and Tempered 14 thru 2 2 thru 4 105,000 95,000 109,000 99,000 125,000 115,000 ASTM J429 Grade 7 Bolts and Screws Medium Carbon Alloy Steel, Whether you have an older Chrysler vehicle or the latest model, keep it looking and running at its best with Chrysler OE parts. Rough Country Suspension Leveling Kits. Grade 5 bolts have a proof strength of 600MPa, and Grade 8 has 840MPa.

You can use a higher grade nut, but never lower, than the bolt. When 7/16-20 Inch Spring Center Bolt. Mopar Shock Absorber Mounting Bolt The material from which they are made is different, grade 5 being medium carbon steel and grade 8 Most of the kits are manufactured from 6061-T6 aircraft-grade aluminum billet, with heat-treated and hardened 10.9 grade pre-installed bolts. Tools, Fluids & Garage Dorman Flanged Bolt - Grade 8 - 1/4 In.-20 X 1 In. The yield strength of the bolts is 940 and the tensile strength is 1040 MPa. Aug 20, 2001. Are they grade 2 or 5 or 8? Also available are complete line of suspension accessories and Mack and Hendrickson Suspension Parts. Ubolts 5/8" diameter and greater are made from Grade 8 material. Dorman HELP! Carriage bolts have a smooth, rounded head for a finished look. From the gravel explorer to the daily commuter, the Grade Bolt is for riders seeking the fastest route to their next adventure. For some highly loaded applications, a 25% stronger fastener may be important. "For a given load, any steel bolt (grade 8 and grade 5 or grade anything) will stretch the same amount, up to its yield strength (also known as its elastic limit).

Grade 1 - SAE J429. I went to ace hardware and matched up the caliper mounting bolts for my evo brembos (yes I was unlucky enough not to get in on def's gb): Our metric grade 10.9 bolts meet ASTM A324 grade BD and SAE J429, grade 8 standards. My bolts are definately stamped '8.8' which is class 8.8 Metric gradingif it had 6 lines/marks on the head it'd be SAE Grade 8 which i agree is closer to 10.9 but you don't get U-BOLT KITS SUPERIOR AUTOMOTIVE 4500 Malone Road Memphis, TN 38118 1-800-545-9882 901-758-9999 Increases or decreases suspension height on most leaf spring applications. Generally, the price of high

The most common grading system used for bolts in the U.S. is the SAE system, but you can find metric grading systems as well. Trivia: I have Stainless Steel Muffler clamps & Hangers on my 70 Showcar. #1 Home Improvement Retailer. A 3/8" proof coil chain is rated to about 2600# working load limit. Raybestos 616-1037 Professional Grade Wheel Alignment Camber Bolt Kit. 10-26-2010, 06:41 AM. Nuts & Bolts 4mm x 20mm Product Code: BAR372. Low 10.8 is equivalent in strength to grade 8. Remove the load, and it "unstretches" back to its original length, i.e. Generally speaking, bolts under 180 ksi (180,000 lbs per sq. The most common high tensile bolts are: Grade 8.8 bolts: Also known as structural grade bolts, they are typically made of steel and plated with several coatings. Made from Grade 8 steel, these bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. 7/16-20 Inch Spring Center Bolt. Plow bolts. Bolt Grade. there will be This white general purpose grease is commonly used in household applications for door hinges, drawer slides, etc. Fastens wood to wood, wood to metal and metal to metal. myautopartswholesale is a division of a long established Distributor of Auto Parts (Established in 1970) HUGE Inventory-45,000 square foot warehouse. Grade 8.8 bolts: Also known as structural grade bolts, they are typically made of steel and plated with several coatings. Get free shipping on qualified Suspension Control Arm Bolt Car Suspension Parts products or Buy Online Pick Up in Store today in the Automotive Department. Parts Included. Darin L. 6/17/2022. Got it! The higher the ISO numbers are, the stronger the bolt. This is your average hardware bolt. What you are looking for is an 8.8 or a 10.9 (Photo 10). Grade 5 bolts are rated at 120 ksi and Grade 8's at 150 ksi. Grade @colnerov. I replace with the same grade whenever possible. Car Suspension Parts. Bolts, Screws and Studs. $6.02. Dawg is right, grade 8 can be deceiving in terms of strength,it depends on application.Most grade 8 stuff is in static applications,front end hardware takes alot of "banging" and goes through huge temperature variations sometimes in a short period of time..like running through water on a 100 degree day,and temperature adds another dynamic to the durability of The first number, the 8, for example, indicates that this bolt has a tensile strength of 116k PSI. English bolts (U.S.S. or S.A.E) are categorized by grade, from grade 2 to grade 8, where the grade represents inch strength. The higher the grade, the stronger the bolt. English bolts have radial lines on their head to identify the grade, or strength class. How Suspension Bolts Work. Square heads paired with a semi-cone point and a fully threaded shaft.

Equal torque may produce different results, on bolts with a different grade. Dorman HELP! Since many automotive bolts need to be able to withstand a lot of stress, they are often Save on Bolts at Advance Auto Parts. Helper springs, Hangers and Shackles,Air Lift Conversion Spring Kits. . Made from medium carbon alloy steel, these (0) Select a store to see pricing & availability. Line: MTM. . Suspension Arm Bolts & Nuts. Higher Number Means Stronger. Nov 8, 2012. grade 8 is used on steering and suspension components due to their strength, however they are just as weak as they are Thats close to the tensile strength rating of a Grade 5 bolt. Print this page . They are at least 25% stronger than medium-strength steel screws. 5 fasteners.

A metric bolt designated as ISO class 6.8 roughly corresponds in strength to an SAE Grade 2 bolt. They are made of boron or carbon steel and have high tensile strength (1040 MPa). Leaf Springs and Suspension specialists selling Truck Suspension parts, car suspension parts, coil and leaf springs, U-Bolts.