Free shipping. Before ARP and others, the stock grade 8 bolts were used back in the 60's and 70's. Tracy Blackford: Anaheim Hills, Ca. tensile strength is 150,000 lbs per square inch ultimate shear strength Grade 5 bolt Grade 8 is much better for suspension, period! Item# FB871. GRADE 8 SQUARE U-BOLT KITS Leaf Spring U Bolt Kits For Heavy Trucks, Medium and Light Duty Trucks And Auto Applications. Grade 8 bolts have 6 evenly spaced radial lines on the head. Monday/Friday info@boltsandnuts.com Phone 440.606.6557 Customer Service Phone: 440.606.6557 In Stock 900 PC. The energy that can be absorbed in an impact is a function of the area under the curve. Grade 8 bolts are medium carbon alloy steel, quenched and tempered at a minimum temperature of 800 degrees Fahrenheit. ARP likely sells them. 1-16 of over 5,000 results for "grade 8 bolts" RESULTS Amazon's Choice Grade 8 Hex Cap Bolts Screws, Nuts, Washers, Lock Washers Assortment Kit - 380 Pieces! Free shipping. Depend on grade 8 hex flange bolts for use in applications that are demanding. A tempered medium carbon steel. Grade G is roughly equivalent to Grade 8. All American and/or World follow the specs. Motor Mount Bolt. Exhaust Flange Bolt Hardware. Follow Us on Social Media Hours: 8am-5pm Est. 5 x 16mm Class 8.8 Cap Screw. O'Reilly Auto Parts has the parts and accessories, tools, and the knowledge you may need to repair your vehicle the right way. for manufacturing of bolt, nuts and washers. Part Number: 831024NY. They are then heat-treated to achieve a hardness of 33 to 39 on the Rockwell C . Serrated. These bolts are sometimes called Frame bolts. 5/16-18X2-1/2 Hex Flange Bolt Grade 8 Zinc Yellow. GRADE 8 FINE THREAD BOLT KIT Our Price: $142.95 . $16 . We recommend using grade 8 nuts, flat washers and high alloy lock washers with any grade 8 bolts / hex cap screws. Grade 8 Hex Bolt Washer/Nut Assortment Yellow Zinc (508) Pcs. There could be zinc plated, hot dip galvanized or plain types of bolts. Grade 8 / Grade G. Grade 8 bolts are more hardened than Grade 5 bolts. Disco Automotive 8mm Short Fold Clip 'U' Extruded Nut. Higher Number Means Stronger. Please select store. Grade 8 bolts have a tensile strength of 150,000 pounds per square inch. Grade 8 is 150,000psi Grade 9 is 180,000psi McMaster Carr 92620A750 Grade 8 Alloy Steel Hex Head Cap Screw Zinc Yellow Pltd, 1/2"-20 Thrd, 3" L, Fully Thrd $4.33ea Jim S. 67 RS "driver "04-25-2013 #5. lawlorj. Bolts secure materials together by applying pressure that tightens the head of the bolt to the nut. Grade 8 Round Bend U-Bolt Kits Come With (2) U-Bolts, Deep Nuts And Thick Washers. 4 x 20mm Class 8.8 Cap Screw. The grade 8 bolt can be identified via the flat, hexagonal head [] 50 Pcs.

Differential Shaft Lock Bolt. Re-use Of Original/Used Spring U-Bolts Is Not Recommended Due To Fatigue and Stretching When U-Bolt Was Originally Torqued. Grade 5 Made of medium carbon steel that is quenched and tempered for added strength, this grade is the most common bolt found in automotive applications. Grade 8 Hex Cap Screws/Bolts. 430 HP@6500. The higher the ISO numbers are, the stronger the bolt. Some bolts are not available in different strength grades while certain steel types are offered in SAE (Society of Automotive Engineers) Grade 2, 5 or 8; head markings identify grade.

written by Brent Vandervort. ASTM A354 BD is used for structural bolts, while SAE J429 Grade 8 is an automotive specification. 25 pcs CrownBolt 88590 Hex Bolts Cap Screws 1/2"-13 x 3-1/2" Coarse Grade 8 Zinc. A grade 8 bolt is stronger than the more commonly used grade 5.

Mark's Standard Handbook for Mechanical Engineers lists Grade 8's as 150 ksi fasteners meaning the tensile strength is 150,000 lbs per square inch. 50 Pcs. SAE Grade 8, Metric 10.9 These bolts are the highest yield fasteners for carbon steel. Coarse Thread. Don't make the mistake thinking that a bolt is a bolt, because they aren't. Brake Bleeder Screw Set. Just remember that all hardware should be re-torqued depending on application and usage. The square neck keeps these bolts from turning when tightening a nut. NAPA Auto Parts Store Not Found.

One of the new bolts broke as he was going over a speed bump at less than walking speed. LIMITED LIFETIME REPLACEMENT.

$54.99. If you're concerned about shearing forces . English bolts have radial lines on their head to identify the grade, or strength class. Automotive Fastener Pro Shop Assortments; Pro Shop Assortment Accessories; Pro Shop Assortment Refills. This type of fastener is stronger and are used when a more demanding application is needed like in automotive suspensions. Now, the front end is making groaning and popping noises. Grade 8 bolts have been hardened more than grade 5 bolts. 5000 Piece Grade 8 COARSE Thread Bolt Assortment. Grades of Bolts - Bolt Grade Markings & Bolt Strength Chart This chart helps to identify the grades of bolts using the identification marks on the bolt's head along with the strength and hardness of common grade bolts. Zinc plated for moderate corrosion resistance. They can come with different finishes as well. Home. The flange distributes pressure over the surface, eliminating the need for a washer. Acura, Alfa Romeo, AMC. PSA100-101 Assortment Refills; . They come ready for supporting your pipework, machinery, etc. SKU: #1200582. They fit with corresponding tapped holes and nuts to create bolted joints. Grade 8 Hex Flange Frame Bolts. The M20 Grade 8.8 Galvanised Bolts are dipped into the galvanizing solution and get a galvanized coating. So the better the grade of the bolt, the more load it will withstand while still remaining elastic. Chevy/GMC Truck Leaf Springs. Grade 8 Hex Bolts Cap Screws, Nuts & Washers Assortment Kit - 380 Pieces!

They can be identified by the five radial lines on the head of the bolt and are usually (but not necessarily) gold in color. Frame Bolts, Grade 8, Coarse Thread. Never replace a graded bolt with a lower grade or lower strengthdo not substitute a stainless steel or silicon bronze bolt for a Grade 5 or 8 bolt, or a brass . The number of lines on the bolt head is 2 less than the actual grade. Its strength is near the high end of the grade scale, although there are higher grades and strengths for more specialized fasteners. Their externally threaded design makes them easy to tighten with wrenches or pliers. Have often heard "Grade 8 bolts are too brittle, don't use them on automotive projects". Disco Automotive 5/8"-11 x 3-1/2" Grade 9 Frame Bolts. JIS B1189 Small Hex Flange Bolt, Grade 10.9, Alloy Steel, Zinc Finish, Coarse Thread, 10m. Grade G is pretty much equivalent to Grade 8. Store Hours CLOSED Mon-Fri: Closed. Grade 8 Bolts Have AQuestion 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. Want to prove it to yourself, drill two holes in two pieces of bar stock 2 ft long, 3" apart at one end one 3/8", and the other 1/4". They are at least 25% stronger than medium-strength steel screws. A nut with a built in washer which is serrated to resist loosening. Grade 8 bolts have six evenly spaced radial lines on the bolt head. 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. We recommend using grade 8 nuts, flat washers and high .

Non Serrated. Leaf Spring U Bolt Kits For Heavy Trucks, Medium and Light Duty Trucks And Auto Applications. $19.98. Get deals on automotive parts, truck parts and more.

Grade 5 bolts have three evenly spaced radial lines on the head. Felt Washer. Well, judge for yourself. Grade 8 bolts have the highest ratings with tensile strength of 150,000 psi. Sun: . IRstuff (Aerospace) 26 Mar 07 22:16. Cheers. Flange nuts serrated. A tempered medium carbon steel. Grade 8 Hex Bolts Cap Screws, Nuts & Washers Assortment Kit - 380 Pieces! The 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. A grade 8 bolt will have 6 radial lines on its head. 8. Meets IFI-111 (2002). tensile strength is 150,000 lbs per square inch. (0 reviews) | 960-010D. USS (Coarse Thread) SAE (Fine Thread) JIS (Japanese) Metric. An ISO Class 10.9 bolt roughly corresponds to an SAE Grade 8 . In actual fact, Grade 5 bolts are often preferred over Grade 8 . Delivery July 07-08 Add TO CART Needa Parts M6-1.0 X 20mm Flange Bolt 7 Piece Part # 006020 SKU # 848415 Free In-Store or Curbside Pick Up SELECT STORE Home Delivery Standard Delivery Bolts vary in use depending on their shape, head type and size. Bolts. Zinc plated grade 8 steel yellow. Grade 8 Hex Bolt Washer/Nut Assortment Yellow Zinc (508) Pcs. Chevy Astro, GMC Safari Leaf Springs; Chevy Blazer, Suburban, Tahoe Full Size, GMC Jimmy&Yukon Full Size; Chevy S10/GMC S15 Pickup , Chevy S10 Blazer, GMC S15 Jimmy;

Bolts of ISO class 8.8 and the slightly stronger class 9.8 roughly correspond to an SAE Grade 5 bolt. This is a metric grading similar to the SAE grade 8 classification, which is used in automotive, and structural industries, as well as in high temp applications. Made in the USA. 8 - Low Head - DIN 7984, 102 products available to order online (QFT6009046G,QFT6009075F,QFT6009076G,QFT6009139K,QFT6009045F,QFT6009099K,QFT6009156B,QFT6009160F,QFT6009026G,QFT6009081M) com offers 5,844 grade 8 bolts products Thousands of grade 8 bolt reviews, same day shipping A grade 8 is a grade 8 The greater the steel's tensile strength . The energy that can be absorbed in an impact is a function of the area under the curve. Grade 8 is near the high end of the grade scale, although there are higher grades and strengths for more specialized fasteners. Please select store. 303 $6476 Get it as soon as Mon, Jun 20 FREE Shipping by Amazon Small Business 1,250 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt Hex Head Cap Screw & Washer Assortment with Metal Drawer ; Grade 8 Square Bend U-Bolt Kits Come With (2) U-Bolts, Deep Nuts And Thick Washers. (Pack of 25) Item#: 28681. Both alignment shops that worked on the poster's car insisted on installing Grade 8 bolts in place of the perfectly good Grade 5 bolts that were installed. In Stock Zinc II plated yellow. Shop O'Reilly Auto Parts online. Thus they are stronger and are used in demanding applications such as automotive suspensions. Buy online, pick up in-store in 30 minutes. Add a vehicle. 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. 5 x 10mm Class 8.8 Cap Screw. Pricing Options. The products are used in a variety of industrial applications ranging from .

Fasteners are made in the USA. 22,675 products. Buy HEX BOLT GRADE 8 - RFD 960717D online from NAPA Auto Parts Stores. Search. Grade 8 bolt. Tech. > This same 21% of force, would have elongated and sheared the Grade 5 bolt. Fully threaded up to 2 1/2". They feature 6 radial lines on the head and are made from medium carbon alloy steel which has been quenched and tempered. Re-use Of Original/Used Spring U-Bolts Is Not Recommended Due To Fatigue and Stretching When U-Bolt Was Originally Torqued. Grade 8 steel plain finish. Save on Bolts at Advance Auto Parts. Automotive; Body Hardware Bodyshop Brake/Wheel Complementary Automotive Items Fleet/Truck Keys and Key Machines . 39" Max These are not second quality fasteners that were previously rejected or rescued from a scrap yard Grade: Grade 8 with lowest price and comfort guarantee. Grade 8 This grade of bolt is made of medium carbon alloy steel that has been quenched and tempered to harden it more than . A Grade 8 has a very high tensile strength .

Shop O'Reilly Auto Parts online. Robert. The Auto Bolt Company has 70 years of experience manufacturing fasteners and bolts for a variety of industries including the Military, Automotive and OEM. Closest store could not be determined, 94601 Get Directions. Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications. One of the biggest mistakes in automotive work, is using the wrong kind of bolt. 16 $14590 ($41.45/100 Items) Get it as soon as Tue, May 10

5/16-18X3 Hex Flange Bolt Grade 8 Phos&Oil. Store Hours CLOSED Mon-Fri: Closed. Engine Cylinder Head Nut Washer Set. Read the rock crawler thread again. Zinc plated grade 5 steel.

Refer to the charts to find the ideal tightening torque. Sun: . The bolts are typically made of a medium carbon alloy steel that is plated in zinc for extra resilience. . Dorman Flanged Bolt - Grade 8 - 1/4 In.-20 X 1 In. So, for example, a grade 5 bolt will only have 3 radial lines on its head. High tensile Grade 8 bolt capability in tension (failure) = 150,000 lbs / in2 x .03349 in2 = 5024 lbs minimum. Proof load (max non-deformation): 120,000 psi The 8.8 Metric Bolt is one of the standards adopted. There are many that do not understand bolts by grade and torque specifications. Pricing Options. Could be worse, could be me!