Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16 - 2231G
SKU: 76369277078

Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16 - 2231G

$54.62 $60.69
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16 - 2231GOverview: Headlock Bolts eliminate the need for lock washers, Period. That's because each Headlock Bolt features 24 equally spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface eliminating the need for lock washers. Features: 16 per Package Includes a ball head hex key socket installation tool that makes it easy to get them started 410 stainless steel Minimum 180,000 PSI tensile strength 24 equally spaced

Overview:

Headlock™ Bolts eliminate the need for lock washers, Period. That's because each Headlock™ Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Features:

  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth

Application:

Year Make Model Submodel Engine Size
1973 - 1974 GMC C35/C3500 Pickup 454/7.4 V8
1968 - 1969 GMC K15/K1500 Pickup 396/6.5 V8
1968 - 1969 GMC K25/K2500 Pickup 396/6.5 V8
1973 - 1974 GMC K25/K2500 Pickup 454/7.4 V8
1968 - 1969 GMC K35/K3500 Pickup 396/6.5 V8
1970 - 1971 GMC K35/K3500 Pickup 402/6.6 V8
1973 - 1974 GMC K35/K3500 Pickup 454/7.4 V8
1967 Mercury Brougham 428/7 V8
1966 - 1967 Mercury Colony Park 410/6.7 V8
1966 - 1968 Mercury Colony Park 428/7 V8
1965 - 1967 Mercury Colony Park 427/7 V8
1967 Mercury Brougham 410/6.7 V8
1967 Mercury Brougham 427/7 V8
1965 Mercury Caliente 427/7 V8
1966 - 1967 Mercury Commuter 410/6.7 V8
1966 - 1968 Mercury Commuter 428/7 V8
1968 Mercury Cougar 427/7 V8
1970 - 1971 Mercury Cougar 429/7 V8
1968 - 1970 Mercury Cougar 428/7 V8
1965 - 1967 Mercury Comet 427/7 V8
1965 - 1968 Mercury Cyclone 427/7 V8
1968 - 1969 Mercury Cyclone 428/7 V8
1965 - 1967 Mercury Commuter 427/7 V8
1969 Mercury Cougar 302/5 V8
1965 Mercury Marauder 427/7 V8
1967 Mercury Marquis 410/6.7 V8
1967 - 1969 Mercury Marquis 428/7 V8
1966 - 1967 Mercury Montclair 410/6.7 V8
1965 - 1967 Mercury Montclair 427/7 V8
1968 - 1969 Mercury Montego 428/7 V8
1968 Mercury Montego 427/7 V8
1970 - 1971 Mercury Cyclone 429/7 V8
1967 Mercury Marquis 427/7 V8
1966 - 1968 Mercury Montclair 428/7 V8
1965 - 1967 Mercury Monterey 427/7 V8
1966 - 1970 Mercury Monterey 428/7 V8
1970 Mercury Montego 429/7 V8
1966 - 1967 Mercury Park Lane 410/6.7 V8
1966 - 1968 Mercury Park Lane 428/7 V8
1966 - 1967 Mercury Monterey 410/6.7 V8
1965 - 1967 Mercury Park Lane 427/7 V8
1965 Mercury Villager 427/7 V8
1965 - 1968 Ford Custom 500 427/7 V8
1965 - 1968 Ford Galaxie 500 427/7 V8
1966 - 1970 Ford Custom 500 428/7 V8
1969 - 1970 Chevrolet Nova 396/6.5 V8
1961 Chevrolet Brookwood 409/6.7 V8
1961 Chevrolet Kingswood 409/6.7 V8
1961 Chevrolet Nomad 409/6.7 V8
1961 Chevrolet Parkwood 409/6.7 V8
1963 Ford 300 427/7 V8
1966 Ford Custom 427/7 V8
1968 - 1970 Ford Custom 428/7 V8
1969 Chevrolet Estate 396/6.5 V8
1969 Chevrolet Estate 427/7 V8
1970 Chevrolet Estate 454/7.4 V8
1970 Chevrolet Estate 402/6.6 V8
1969 Chevrolet Brookwood 427/7 V8
1970 - 1972 Chevrolet Brookwood 454/7.4 V8
1970 - 1972 Chevrolet Brookwood 402/6.6 V8
1968 - 1969 Chevrolet C10 Pickup 396/6.5 V8
1970 - 1972 Chevrolet C10 Pickup 402/6.6 V8
1973 - 1974 Chevrolet C10 Pickup 454/7.4 V8
1968 - 1969 Chevrolet C20 Pickup 396/6.5 V8
1970 - 1972 Chevrolet C20 Pickup 402/6.6 V8
1973 - 1974 Chevrolet C20 Pickup 454/7.4 V8
1968 - 1969 Chevrolet C30 Pickup 396/6.5 V8
1970 - 1972 Chevrolet C30 Pickup 402/6.6 V8
1973 - 1974 Chevrolet C30 Pickup 454/7.4 V8
1967 - 1969 Chevrolet Camaro 396/6.5 V8
1969 Chevrolet Camaro 427/7 V8
1970 - 1972 Chevrolet Camaro 402/6.6 V8
1966 - 1969 Chevrolet Caprice 396/6.5 V8
1966 - 1969 Chevrolet Caprice 427/7 V8
1970 - 1976 Chevrolet Caprice 454/7.4 V8
1970 - 1972 Chevrolet Caprice 402/6.6 V8
1965 - 1970 Chevrolet Chevelle 396/6.5 V8
1970 - 1973 Chevrolet Chevelle 454/7.4 V8
1970 - 1972 Chevrolet Chevelle 402/6.6 V8
1968 Chevrolet Chevy II 396/6.5 V8
1966 - 1969 Chevrolet Corvette 427/7 V8
1965 Chevrolet Corvette 396/6.5 V8
1970 - 1974 Chevrolet Corvette 454/7.4 V8
1975 - 1980 Chevrolet C10 454/7.4 V8
1975 - 1986 Chevrolet C20 454/7.4 V8
1975 - 1986 Chevrolet C30 454/7.4 V8
1976 Chevrolet G20 454/7.4 V8
1975 - 1976 Chevrolet G30 454/7.4 V8
1970 - 1976 Chevrolet Impala 454/7.4 V8
1976 - 1980 Chevrolet K10 454/7.4 V8
1976 - 1978 Chevrolet K20 454/7.4 V8
1977 - 1986 Chevrolet K30 454/7.4 V8
1973 - 1975 Chevrolet Laguna 454/7.4 V8
1973 - 1975 Chevrolet Malibu 454/7.4 V8
1970 - 1975 Chevrolet Monte Carlo 454/7.4 V8
1987 - 1988 Chevrolet R30 454/7.4 V8
1989 Chevrolet R3500 454/7.4 V8
1987 - 1988 Chevrolet V30 454/7.4 V8
1989 Chevrolet V3500 454/7.4 V8
1975 - 1978 GMC C15 454/7.4 V8
1979 - 1980 GMC C1500 454/7.4 V8
1975 - 1978 GMC C25 454/7.4 V8
1979 - 1986 GMC C2500 454/7.4 V8
1968 - 1970 Ford Mustang 428/7 V8
1971 - 1972 Ford Mustang 351/5.8 V8
1964 - 1967 Ford Ranch Wagon 427/7 V8
1968 - 1970 Ford Ranch Wagon 428/7 V8
1963 - 1967 Ford Thunderbird 427/7 V8
1968 Ford Torino 427/7 V8
1970 - 1971 Ford Torino 429/7 V8
1963 Ford Thunderbird 410/6.7 V8
1966 - 1967 Ford Thunderbird 428/7 V8
1968 - 1969 Ford Torino 428/7 V8
1968 - 1969 GMC C15/C1500 Pickup 396/6.5 V8
1970 - 1972 GMC C15/C1500 Pickup 402/6.6 V8
1973 - 1974 GMC C15/C1500 Pickup 454/7.4 V8
1968 - 1969 GMC C25/C2500 Pickup 396/6.5 V8
1970 - 1972 GMC C25/C2500 Pickup 402/6.6 V8
1973 - 1974 GMC C25/C2500 Pickup 454/7.4 V8
1968 - 1969 GMC C35/C3500 Pickup 396/6.5 V8
1970 - 1972 GMC C35/C3500 Pickup 402/6.6 V8
1970 - 1972 Chevrolet Townsman 454/7.4 V8
1969 Chevrolet Townsman 396/6.5 V8
1969 Chevrolet Townsman 427/7 V8
1968 - 1970 Ford Country Sedan 428/7 V8
1964 - 1966 Ford Country Sedan 427/7 V8
1964 - 1968 Ford Country Squire 427/7 V8
1971 - 1972 Ford Country Sedan 429/7 V8
1967 - 1969 Ford Country Squire 428/7 V8
1964 - 1969 Ford Fairlane 427/7 V8
1968 - 1969 Ford Fairlane 428/7 V8
1970 Ford Fairlane 429/7 V8
1965 - 1967 Ford Galaxie 427/7 V8
1968 - 1969 Ford Galaxie 500 428/7 V8
1970 Ford Falcon 429/7 V8
1966 - 1967 Ford Galaxie 428/7 V8
1965 - 1969 Ford LTD 428/7 V8
1965 - 1968 Ford LTD 427/7 V8
1969 - 1971 Ford Mustang 429/7 V8
1968 Ford Mustang 427/7 V8
1975 - 1978 GMC C35 454/7.4 V8
1979 - 1986 GMC C3500 454/7.4 V8
1975 - 1976 GMC G25 454/7.4 V8
1976 GMC G35 454/7.4 V8
1976 GMC K15 454/7.4 V8
1980 GMC K1500 454/7.4 V8
1976 - 1978 GMC K25 454/7.4 V8
1979 - 1986 GMC K3500 454/7.4 V8
1987 - 1989 GMC R3500 454/7.4 V8
1987 - 1989 GMC V3500 454/7.4 V8
1961 - 1965 Chevrolet Bel Air 409/6.7 V8
1963 - 1969 Chevrolet Bel Air 427/7 V8
1965 - 1969 Chevrolet Bel Air 396/6.5 V8
1970 - 1975 Chevrolet Bel Air 454/7.4 V8
1970 - 1972 Chevrolet Bel Air 402/6.6 V8
1961 - 1965 Chevrolet Biscayne 409/6.7 V8
1963 - 1969 Chevrolet Biscayne 427/7 V8
1965 - 1969 Chevrolet Biscayne 396/6.5 V8
1973 - 1974 Chevrolet G10 Van 454/7.4 V8
1973 - 1974 Chevrolet G20 Van 454/7.4 V8
1973 - 1974 Chevrolet G30 Van 454/7.4 V8
1961 - 1965 Chevrolet Impala 409/6.7 V8
1963 - 1969 Chevrolet Impala 427/7 V8
1965 - 1969 Chevrolet Impala 396/6.5 V8
1970 - 1972 Chevrolet Impala 402/6.6 V8
1968 - 1969 Chevrolet K10 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K10 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K10 Pickup 454/7.4 V8
1968 - 1969 Chevrolet K20 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K20 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K20 Pickup 454/7.4 V8
1968 - 1969 Chevrolet K30 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K30 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K30 Pickup 454/7.4 V8
1969 Chevrolet Kingswood 396/6.5 V8
1969 Chevrolet Kingswood 427/7 V8
1970 - 1972 Chevrolet Kingswood 454/7.4 V8
1970 - 1972 Chevrolet Kingswood 402/6.6 V8
1965 - 1967 Chevrolet Malibu 396/6.5 V8
1970 - 1972 Chevrolet Monte Carlo 402/6.6 V8
1970 Chevrolet Nova 402/6.6 V8
1970 - 1972 Chevrolet Townsman 402/6.6 V8
1970 - 1972 Chevrolet Biscayne 454/7.4 V8
1969 Chevrolet Brookwood 396/6.5 V8
1970 - 1972 Chevrolet Biscayne 402/6.6 V8

Specs:

Brand Mr. Gasket
Emission Code 5
Finish Polished
Material 410 stainless steel
Product Type HeadLock Locking Header Bolts
Warning California Proposition 65
Warranty Limited 90 Day
Weight 7
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76369277078

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4.1 ★★★★★
Based on 1271 reviews
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Heather
Dallas, US
★★★★★ 4
Fun dog toy
Size: Medium(6")
Great ball, easy to use, sturdy toy, and fun toy that dogs love. Only a 4 star as I wish it was a little bit bigger and with more handles.
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Reviewed in the United States on February 6, 2026
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Dez
Omaha, US
★★★★★ 5
Great bouncy ball !
Size: Medium(6")
What I like about this ball is how I could interact with my Poodle he love bouncing it around so far it seems very durable as my dog is a chewer
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Reviewed in the United States on May 27, 2026
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Sharon Beers
Omaha, US
★★★★★ 3
Nice ball w/straps to grab for ur dog to carry the ball.
Size: Medium(6")
She’s afraid of SO many things. Gotta give her more time. From a hoarding group…so, no socializing. Time will tell. Very nice ball w/ tough straps to grab hold of & carry it.
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Reviewed in the United States on April 8, 2026
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PikaJoon
Whiting, US
★★★★★ 5
Haru LOVES this toy!
I recently purchased the Amazon Basics Hide and Seek Squeaky Dog Plush Toy, Rabbit and Carrot 5 Pack, and it has been an absolute hit with my dog Haru! This set has quickly become his favorite playtime activity, and it's easy to see why. From the moment I introduced Haru to the plush toys, he was hooked! The rabbit and carrot design is not only adorable but also adds an element of excitement and curiosity for him. The toys' quality is impressive, with sturdy stitching that has held up well to Haru's enthusiastic play style. The "hide and seek" aspect of the toys is brilliant. Each plush toy contains squeakers, which immediately captured Haru's attention. He thoroughly enjoys searching for the source of the squeaky sound and then triumphantly "catching" the rabbit or carrot. It's like a mini-game that keeps him mentally stimulated and entertained. One of the best things about this 5-pack set is the variety it offers. Haru never gets bored because he can alternate between the different plush toys, and each one presents a new challenge for him. Whether he's "hunting" the rabbit or "nibbling" on the carrot, his excitement is contagious! Furthermore, I appreciate how these toys keep Haru engaged for a good amount of time. As a busy dog owner, it's essential to have toys that can entertain him while I'm occupied with other tasks. The Hide and Seek Squeaky Dog Plush Toy accomplishes this perfectly, giving me some peace of mind knowing Haru is happily occupied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 21, 2023
J
Verified Purchase
Jillian
Grantham, US
★★★★★ 5
Great toy
Great size for a medium to large dog and a good value overall. The carrot foliage is made of felt and can tear easily, but the carrot body and bunnies have typical toy durability. The bunnies include squeakers that are softer and not high-pitched. The holes are sized well—small enough that the bunnies don’t fall out on their own. Even with only a few stuffed inside, they stay put until your dog pulls them out.
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Reviewed in the United States on November 30, 2025

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