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BackHomeHardware, Seals, & ConsumablesHardwareFastenersBolts & Screws198-3899: M8-1.25 x 20mm Rounded Pan Head Internal Hex Screw
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Hardware, Seals, & ConsumablesHardwareFastenersBolts & Screws198-3899: M8-1.25 x 20mm Rounded Pan Head Internal Hex Screw
198-3899: M8-1.25 x 20mm Rounded Pan Head Internal Hex Screw
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198-3899: M8-1.25 x 20mm Rounded Pan Head Internal Hex Screw
Cat® Button Head Machine Screw (Hex Socket Drive)
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.
Need More Help? Contact Us
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.
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. These are small internal drive screws.
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).
Application: Cat bolts and the matching hardened 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.
972M XE 962M Z 966M XE 988K 972M 950M Z 966L 966M 962L 950M 962M 990K 950L 982M
TRACK-TYPE TRACTOR
D9T D6G2 XL
INDUSTRIAL TRACTOR
HA771
MINI HYD EXCAVATOR
305.5 GC
TRACK FELLER BUNCHER
1090 1190T 2390 TK751 1390 1190
WHEEL SCRAPER
637K
WHEEL FELLER BUNCHER
543 533
TRUCK
793F OEM 797F
LOGGER
322C
EXCAVATOR
325D FM 324D FM LL 330D MH 323F SA 325D MH 322C FM 320D FM 330C FM 325C FM 330D FM
VIBRATORY COMPACTOR
CB-534D CB-564D
MOBILE HYD POWER UNIT
329D L
View More
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 198-3899
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Description for part number 198-3899
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. These are small internal drive screws.
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).
Application: Cat bolts and the matching hardened 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.
972M XE 962M Z 966M XE 988K 972M 950M Z 966L 966M 962L 950M 962M 990K 950L 982M
TRACK-TYPE TRACTOR
D9T D6G2 XL
INDUSTRIAL TRACTOR
HA771
MINI HYD EXCAVATOR
305.5 GC
TRACK FELLER BUNCHER
1090 1190T 2390 TK751 1390 1190
WHEEL SCRAPER
637K
WHEEL FELLER BUNCHER
543 533
TRUCK
793F OEM 797F
LOGGER
322C
EXCAVATOR
325D FM 324D FM LL 330D MH 323F SA 325D MH 322C FM 320D FM 330C FM 325C FM 330D FM
VIBRATORY COMPACTOR
CB-534D CB-564D
MOBILE HYD POWER UNIT
329D L
View More
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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