BackHomeHardware, Seals, & ConsumablesHardwareFastenersNuts129-3178: M6 x 1mm Hex Lock Nut
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Hardware, Seals, & ConsumablesHardwareFastenersNuts129-3178: M6 x 1mm Hex Lock Nut
129-3178: M6 x 1mm Hex Lock Nut
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129-3178: M6 x 1mm Hex Lock Nut
Lock Nut
Brand: Cat
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Warranty Information
Warranty Information
Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.
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Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.
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Find a DealerEmail
Warranty Information
Warranty Information
Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.
Need More Help? Contact Us
Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.
Need More Help? Contact Us
Find a DealerEmail
KeyKey
Factory Fit
This part is designed to fit your Cat equipment based on the manufacturer’s specifications.
Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.
Remanufactured
Non-Returnable
Kit
Replaced
Remanufactured
Non-Returnable
Kit
Replaced
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Parts diagram for 129-3178
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Description for part number 129-3178
Description: Cat® fastener parts are designed for specific applications based on size, strength, clamp load, and past performance. This is information other manufacturers do not have. They are selected to last until rebuild or the life of the machine. While it may seem as though non-Cat hardware and fasteners are suitable for your machine, no other company knows your equipment like we do.
Attributes: •Cat Fasteners are manufactured to precise specifications and are built for durability, reliability, productivity •Strength & Quality – Fasteners meet or exceed ISO, ASTM, ASME & SAE requirements. •Cat bolts, nuts, and washers are designed to work together as a system for maximum clamping force. •Coatings that meet special requirements for different applications (RoHS compliant).
Applications: Cat bolts and the matching washers and nuts form a performance based system which produces consistently high clamp loads. You can trust Cat Fasteners to help you build it, maintain it, or fix it - for most machine and workshop applications throughout the world.
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Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Specifications for part number 129-3178
Units of Measure
USMetric
Thickness (mm): 6
Lock Mechanism: Nylon Insert
Thickness (in): 0.236
Thread Size (dia x pitch) (mm): M6x1
Thread: RH Coarse
Height (mm): 6
Nut Type: Hex
Drive (mm): 10
Material: STEEL,Carbon Steel,Alloy Zinc
Thread Size (in - TPI) (in): M6-1
Material Description: ISO 898-2 Class 10
Coating: Zinc
Hand of Thread: RH
Thread Size (mm): M6
Class or Grade: See Drawing
Hole Thread Pitch: 1.00
Drive (in): 0.394
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Compatible Models for part number 129-3178
INTEGRATED TOOLCARRIER
IT14G IT28G IT28F
WHEEL HARVESTER
550 570 580
LOAD HAUL DUMP
R2900G
MOTOR GRADER
24H 12G 120H 120G 140G 16G 14G
TRACK-TYPE TRACTOR
D8R II D6R II D4G D7R II
WHEEL SKIDDER
525 515 545 525B
MINI HYD EXCAVATOR
303.5C 303C CR
MARINE ENGINE
C280-16 C280-12 C175-16 C280-6 C280-8
TRACK FELLER BUNCHER
1190T 2390 1190 1290T 1390
BROOM-ANGLE
BA22
FRONT SHOVEL
5080
EXCAVATOR
322B L 345B L 330-A L 325B L 312B 375-A L M325D MH 350-A 325C L 330B L 385B 312B L 315B L 375-A 350-A L 365B II M312 M315 M318 M325D L MH
Description: Cat® fastener parts are designed for specific applications based on size, strength, clamp load, and past performance. This is information other manufacturers do not have. They are selected to last until rebuild or the life of the machine. While it may seem as though non-Cat hardware and fasteners are suitable for your machine, no other company knows your equipment like we do.
Attributes: •Cat Fasteners are manufactured to precise specifications and are built for durability, reliability, productivity •Strength & Quality – Fasteners meet or exceed ISO, ASTM, ASME & SAE requirements. •Cat bolts, nuts, and washers are designed to work together as a system for maximum clamping force. •Coatings that meet special requirements for different applications (RoHS compliant).
Applications: Cat bolts and the matching washers and nuts form a performance based system which produces consistently high clamp loads. You can trust Cat Fasteners to help you build it, maintain it, or fix it - for most machine and workshop applications throughout the world.
View More
Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Specifications for part number 129-3178
Units of Measure
USMetric
Thickness (mm): 6
Lock Mechanism: Nylon Insert
Thickness (in): 0.236
Thread Size (dia x pitch) (mm): M6x1
Thread: RH Coarse
Height (mm): 6
Nut Type: Hex
Drive (mm): 10
Material: STEEL,Carbon Steel,Alloy Zinc
Thread Size (in - TPI) (in): M6-1
Material Description: ISO 898-2 Class 10
Coating: Zinc
Hand of Thread: RH
Thread Size (mm): M6
Class or Grade: See Drawing
Hole Thread Pitch: 1.00
Drive (in): 0.394
View More
Compatible Models for part number 129-3178
INTEGRATED TOOLCARRIER
IT14G IT28G IT28F
WHEEL HARVESTER
550 570 580
LOAD HAUL DUMP
R2900G
MOTOR GRADER
24H 12G 120H 120G 140G 16G 14G
TRACK-TYPE TRACTOR
D8R II D6R II D4G D7R II
WHEEL SKIDDER
525 515 545 525B
MINI HYD EXCAVATOR
303.5C 303C CR
MARINE ENGINE
C280-16 C280-12 C175-16 C280-6 C280-8
TRACK FELLER BUNCHER
1190T 2390 1190 1290T 1390
BROOM-ANGLE
BA22
FRONT SHOVEL
5080
EXCAVATOR
322B L 345B L 330-A L 325B L 312B 375-A L M325D MH 350-A 325C L 330B L 385B 312B L 315B L 375-A 350-A L 365B II M312 M315 M318 M325D L MH
