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. 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. Grade 5 bolts are identified with 3 equally spaced radial lines on the head. Only 17 left in stock (more on the way). Fastens wood to wood, wood to metal and metal to metal. ATS offers Grade 8 Suspension Parts. Todays High Tech or 50 years ago Low Tech. . U-bolts have a sufficient amount of rolled threads on each leg. What bolt grade are your u bolts in the kit indicated below? Sway Bar Link Bolt; Crown Automotive Sway Bar Link Bolt Reviews. 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 strong (theyre brittle). Chrome Car Battery Mounts; Bolts & Fasteners; Brake System Components; Differential Covers; Ford Performance Caster and Camber Eccentric Bolt Kit. The first number, the They pass through the brackets on the frame and the control arm bushings to allow the control arm to move up and down. If you're replacing the control arm bushings and bolts you'll need 6 per side3 arms An example is substituting grade-eight bolts, for the grade-two, in an oil pan. Most of the kits are manufactured from 6061-T6 aircraft-grade aluminum billet, with heat-treated and hardened 10.9 grade pre-installed bolts. These kits Electronics & Navigation. You can use a higher grade nut, but never lower, than the bolt. Shimano GRX400 2x10 drivetrain. 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 Rear Suspension Trailing Arm Bolt (MB844521) by Chrysler OE. so when they go to bend, they snap in half instead. Made from medium carbon alloy steel, these Grade 1 - SAE J429. "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). grab a tape measure and that is easy enough to figure out. Go. Buy online, pick up in-store in 30 minutes. 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. Automotive engineers size bolts, to provide adequate stretch and substituting a different length can cause problems. They are made of boron or carbon steel and have high tensile strength (1040 MPa). 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 Bolt Grade. I try to take advantage of the factory research when replacing bolts and such. You left zinc carriage bolt, zinc standard bolt, Grade 5 bolt, Grade 8 bolt Dorman HELP! Shop Popular Brands. Bolts, Screws and Studs. Grade For example A2-70 head mark stainless steel bolts are best for Non-active automotive use. Tightening suspension bolts: Lachlan: Brakes, Steering & Suspension: 3: 09-07-2005 03:50 AM: Impact Gun for Suspension Bolts: Soon2BturbodRS: Brakes, Steering & (0) Select a store to see pricing & availability. Trivia: I have Stainless Steel Muffler clamps & Hangers on my 70 Showcar. Grade 8 bolts are more 'brittle'. inch) tensile strength are not considered brittle. However, in stock form one of the shear Apr 14, 2015. grade 8 fine thread 9/16", length depends on where you are using it. When used with a Grade-G lock nut, the frame bolt system resists bolt slippage by distributing the clamp load over a wide area. SAE grade 5 steel 18-1220A (4 Sets Per Clamshell) Nuts & Bolts 4mm x 20mm Product Code: BAR372. 10-26-2010, 06:41 AM. 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, Save on Bolts at Advance Auto Parts. Grade 8 is 150 KSI, and Metric 12.9 is 177 KSI. "Just ASK Bob" Hours: Mon-Fri U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2inch Long U-Bolts - APUBR-1 What is Also available are complete line of suspension accessories and Mack and Hendrickson Suspension Parts. 0.89. Grade 5 bolts are set apart with 3 raised marks on their heads. The difference in bolt grade is that its manufacturing materials are different, and the prices of different materials in the market are also different. I use to build road race cars and the Caroll Smith Book is a Bolt Grade Markings. There are several grades of bolts but the three common grades for SAE are 2, 5 and 8. Steering & Suspension. Helper springs, Hangers and Shackles,Air Lift Conversion Spring Kits. you are in NY, so I am guessing you dont have a local Tractor Supply. This means In the classic 1953 French Part Numbers. But, "brittle" is relative. The common class (grades) for metric are 5.8, 8.8, 10.9 and 12.9. They provide outstanding performance and dependability, To determine the strength characteristics of a replacement metric bolt, you have to look on its head. Connect heavy materials that are bearing extreme loads. All fasteners have a place in this world. Ideal solution to keep your vehicle in top shape Crafted from premium-grade materials and the latest technology. With the MAHLE ebikemotion X35 drive system and the Grade's floating seat stays you'll have all day comfort and confidence for whatever comes your way. The flange eliminates the need for a washer. Bolt Grade Markings and Strength Chart. Go with what fits! The material from which they are made is different, grade 5 being medium carbon steel and grade 8 Also found in general hardware use. Lithium greas e is made from lithium soap, which is the salt from fatty acids, it is a non-detergent soap that yields a stable, non-corrosive grease. From the gravel explorer to the daily commuter, the Grade Bolt is for riders seeking the fastest route to their next adventure. In applications such as suspensions, a very high 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): #1 Home Improvement Retailer. there will be Thats right, replace the OE suspension bolts in your Jeep JL/JLU with the new Northridge4x4 JL Grade 8 Bolt Kits (pn# NORJLGR8-1). Grade 5 bolts have a proof strength of 600MPa, and Grade 8 has 840MPa. So the better the grade of the bolt, the more load it will withstand while still remaining elastic. Aug 20, 2001. The square neck keeps these bolts from turning when tightening a nut. The nut material will actually be softer. Grade of a bolt is easily determined by the For that reason the Grade 8 Spring Eye Bolts, Grade 8 Shackle Bolts are much stronger (tensile strength) when torquing. Click & Collect Check stock in other stores. High-Strength Grade 8 SteelSquare-Neck Carriage Bolts. Manufactured to strict quality and safety standards using high-grade materials, these are the parts that Chrysler stands behind. Tools, Fluids & Garage Dorman Flanged Bolt - Grade 8 - 1/4 In.-20 X 1 In. Thread Size: 9/16-12 Inch. Thread Size: 7/16-20 Inch. Equal torque may produce different results, on bolts with a different grade. $6.02. Bolts, Screws and Studs . For A-arm's the bolt is used in double shear. Buy online, pick up in-store in 30 minutes. Low 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. "Just ASK Bob" Hours: Mon Used in automotive applications and for bolting large and forged parts, metric 10.9 bolts exhibit high tensile strength and good wear resistance. 8 or Gr. American Automotive u bolts are manufactured for maximum clamp. Grade 10.8 is a metric bolt high tensile grade. colnerov. A4 PSAB10 Bolt & Nut For Arm Bushes M10 Nyloc M10 x 100mm Hexagon EACH A6 PSAB10 To many reasons to list. This white general purpose grease is commonly used in household applications for door hinges, drawer slides, etc. Material: Steel. Got it! To determine the strength characteristics of a replacement metric bolt, you have to look on its head. (0) Select a store to see pricing & availability. 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. For a 200 lb person a single Grade 5 Bolt use is based on the application. Whether you have an older Chrysler vehicle or the latest model, keep it looking and running at its best with Chrysler OE parts. The higher the ISO numbers are, the stronger the bolt. Grade 10.9 bolts: As these bolts are most often used in the automotive industry, they are also referred to as car bolts. Creates its own thread when it penetrates wood and other soft material. Audi. Please choose a rating. Head markings on stainless steel bolts do not indicate the tensile strength. Ubolts 5/8" diameter and greater are made from Grade 8 material. Hi, The likely tensile strength of the bolt is as you say grade 8.8 but your load on the Auto Mfg. Grade 8.8 bolts: Also known as structural grade bolts, they are typically made of steel and plated with several coatings. Square heads paired with a semi-cone point and a fully threaded shaft. 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. Made to Japanese Industrial Standards, these Class 10. Part #: 03762. (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. Part #: 03762. Car Suspension Parts. Remove the load, and it "unstretches" back to its original length, i.e. . Select a store to see pricing & availability. Are they grade 2 or 5 or 8? For a 200 lb person a single Grade 5 would take 73g's and our load is distributed amongst 3 or more. Metric bolts use their own numbering In actual fact, Grade 5 bolts are often preferred over Grade 8 . The top plate shape must mate with the shape of the U-bolt; do not use improperly shaped U-bolts or U-bolts produced on worn dies which may alter the intended top shape of the U-bolt. When Darin L. 6/17/2022. Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum: Suspension bolt - Grade An Alpine has lots of welded-on nuts and I don't know what Grade they are. Grade 8 bolts are usually found in critical fastening applications, such as suspension parts, cylinder head bolts and flywheel bolts. For instance, installing a longer bolt may place too few threads in the grip If you use a grade 10.9 bolt, the nut should be marked "10". 5 fasteners. Check the head of the original bolt, there should be six radial lines from the center of the head going out. Dorman HELP! In Stock Free delivery for orders above 25*. to. Plow bolts. We Supply Round UBolts, Square UBolts And Semi-Round U Bolt Kits Complete. $0 - $10 (4) $10 - $20 (5) $40 - $50 (1) Review Rating. My obvious choices are "real" grade 8 or grade 5 Leaf Springs and Suspension specialists selling Truck Suspension parts, car suspension parts, coil and leaf springs, U-Bolts. Rough Country offers suspension leveling kits for a wide variety of trucks, designed to be a complete bolt-on solution. Generally speaking, bolts under 180 ksi (180,000 lbs per sq. Line: MTM. So, relatively speaking, neither Grade 5 or Grade 8 bolts are considered brittle. Price. Cooling & Heating. Grade 8 is SAE, 8.8 is metric. Line: MTM. Parts Included. The yield strength of the bolts is 940 and the tensile strength is 1040 MPa. 5 4 & Up 3 & Up 2 & Up 1 & Up 0. Never use for engine components, such as Rod, head, flywheel, or anything requiring ASTM Gr. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in theCompatibility Table. Thread Size: 7/16-20 Inch. 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 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 .