Hex Flange Head Capscrews
Genuine Hex Flange Head Capscrews for Onan, Cummins & Fleetguard Engines
Discover our premium collection of Hex Flange Head Capscrews, engineered specifically for power engines by Onan, Cummins, and Fleetguard. These genuine replacement parts are designed to provide a secure fit and superior clamping force, essential for maintaining engine integrity under demanding conditions.
Hex Flange Head Capscrews – Durable, Reliable, Genuine Diesel Engine Parts
Our Hex Flange Head Capscrews feature integrated flanges that distribute load evenly, reducing the need for washers and enhancing stability. Crafted from high-grade materials, these capscrews resist corrosion and wear, ensuring long-lasting performance in diesel engine assemblies.
- Precision Fit: Engineered to meet exact specifications for Onan, Cummins, and Fleetguard power engines.
- Enhanced Durability: Manufactured with premium alloys for superior strength and corrosion resistance.
- Optimized Performance: Flange head design provides reliable clamping force and prevents loosening under vibration.
Maintain your diesel engine’s reliability with our genuine Hex Flange Head Capscrews—trusted by professionals and designed for performance.
Why Choose Our Hex Flange Head Capscrews?
Choose our genuine Hex Flange Head Capscrews for unmatched quality, expert support, and guaranteed compatibility with Onan, Cummins, and Fleetguard diesel engines.
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CUMMINS 4008012 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$156.25$142.73Engineered for Endurance, Designed for Dependability Precision-machined hex flange head cap screw to ensure optimal clamping force and vibration resistance. Corrosion-resistant finish improves...$156.25$142.73 -
CUMMINS 4007848 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$274.98$251.20Precision fastening engineered for endurance and exact fitment Exceptional corrosion resistance ensuring long-lasting service under demanding conditions Certified genuine Cummins OEM part...$274.98$251.20 -
CUMMINS 4007226 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$83.12$75.93Engineered to excel under extreme conditions Precision-designed for perfect compatibility and secure fastening Corrosion-resistant finish guarantees long-lasting durability Certified OEM by Cummins...$83.12$75.93 -
CUMMINS 4007194 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$70.99$64.85Precision-engineered to deliver uncompromising strength and stability in your Cummins system Crafted using high-grade materials to withstand extreme operational stresses Guaranteed as an original...$70.99$64.85 -
CUMMINS 4007059 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$89.13$81.42Precision engineered fastening for dependable power systems Exceptional strength and corrosion resistance for demanding environments Guaranteed OEM quality ensuring seamless compatibility and...$89.13$81.42 -
CUMMINS 4006964 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$126.67$115.71Engineered to perfection for lasting endurance and flawless performance Precision-machined hex flange design delivering superior clamping force and vibration resistance Constructed from premium...$126.67$115.71 -
CUMMINS 4006861 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$63.55$58.05Precision engineered for enduring strength and seamless reliability. Optimized flange design enhances secure fastening under rigorous engine conditions. Corrosion-resistant finish assures longevity...$63.55$58.05 -
CUMMINS 4006385 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$154.15$140.82Engineered precision for lasting strength Durable hex flange design for secure fastening 100% genuine Cummins OEM for unmatched compatibility Unleash Dependability with the CUMMINS 4006385 HEX...$154.15$140.82 -
CUMMINS 4006384 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$135.88$124.13Engineered to meet stringent Cummins quality standards for uncompromising reliability Precision-crafted hex flange head design for secure fastening and durability under high stress Manufactured as...$135.88$124.13 -
CUMMINS 4001226 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$59.39$54.26Designed for durability: Engineered precisely to meet Cummins specifications ensuring maximum strength and reliable fastenings. Optimized for performance: The hex flange head design provides...$59.39$54.26 -
CUMMINS 4001095 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$262.49$239.79Precision engineered for uncompromising reliability and secure fastening High-strength flange design enhances load distribution and vibration resistance Durable corrosion-resistant finish for...$262.49$239.79 -
CUMMINS 4000521 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$157.98$144.32Engineered precision for uncompromising power integrity Robust corrosion resistance ensuring extended service life Designed for exact Cummins system compatibility Certified OEM component delivering...$157.98$144.32 -
CUMMINS 3975805 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$227.46$207.79Depend on uncompromising strength engineered for generator stability Designed to endure rigorous operational stresses for long-lasting performance Crafted exclusively as a genuine OEM component by...$227.46$207.79 -
CUMMINS 3975555 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$8.06$7.36Engineered for enduring strength and seamless integration. Precision-machined to deliver consistent torque and secure fastening. Corrosion resistance ensures long-lasting protection in demanding...$8.06$7.36 -
CUMMINS 3973526 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$61.44$56.12Precision-engineered fastening for uncompromising durability and performance Exceptional resistance to vibration and thermal stress in demanding power applications Certified genuine OEM CUMMINS...$61.44$56.12 -
CUMMINS 3970810 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$14.03$12.81Engineered to last: Precision-crafted for secure, vibration-resistant fastening in high-performance Cummins systems. Superior corrosion resistance: Manufactured with premium materials to withstand...$14.03$12.81 -
CUMMINS 3968959 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$50.73$46.34Precision engineered fastening for uncompromised engine reliability Exceptional strength to withstand harsh operational demands Designed exclusively by Cummins for guaranteed OEM...$50.73$46.34 -
CUMMINS 3968475 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$15.77$14.41Precision engineered fastening for uncompromised power system integrity Robust corrosion resistance and high tensile strength for longevity Genuine Cummins OEM component designed specifically for...$15.77$14.41 -
CUMMINS 3967746 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$9.27$8.47Precision engineered to maintain robust engine assembly under demanding conditions Durable coating for corrosion resistance, ensuring long-lasting reliability Certified OEM part by CUMMINS...$9.27$8.47 -
CUMMINS 3966976 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$6.55$5.98Precision engineered fastening for unwavering engine integrity Durable hex flange design ensures reliable torque and vibration resistance OEM part crafted specifically for Cummins engines,...$6.55$5.98 -
CUMMINS 3957063 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$11.82$10.79Precision engineered for uncompromising strength and reliability Robust hex flange head design ensures secure fastening under extreme conditions Manufactured exclusively as an OEM component by...$11.82$10.79 -
CUMMINS 3954857 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$12.29$11.23Engineered to precision standards for uncompromising durability Ensures secure fastening critical to engine performance and safety Direct OEM part from Cummins for guaranteed compatibility and...$12.29$11.23 -
CUMMINS 3954824 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$27.46$25.09Engineered for power and precision—trust in every turn. Robust hex flange design ensures secure fastening under high stress. Provides optimal load distribution to maintain engine integrity. 100% OEM...$27.46$25.09 -
CUMMINS 3954701 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$17.38$15.88Precision engineered for uncompromising strength and reliability. Superior flange design ensures consistent torque and vibration resistance. Manufactured exclusively by Cummins to meet exacting OEM...$17.38$15.88 -
CUMMINS 3950167 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$26.70$24.40Engineered to deliver uncompromising strength and reliability in every fastening. Precision-crafted for optimal fit and secure mounting in Cummins power systems. Corrosion-resistant finish to...$26.70$24.40 -
CUMMINS 3950161 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$5.73$5.23Engineered for Precision and Durability: Experience unmatched fit and strength with every turn. Enhances Structural Integrity: Designed to withstand high torque and resist loosening under vibration...$5.73$5.23 -
CUMMINS 3945232 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$240.20$219.43Precision engineered fastening for ultimate engine integrity Corrosion-resistant hex flange head ensures durability under extreme conditions Manufactured as a genuine OEM component by Cummins for...$240.20$219.43 -
CUMMINS 3945231 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$99.66$91.04Precision engineered for uncompromised strength and secure fastening Exceptional resistance to vibration and environmental stress for long-lasting service Certified OEM part maintaining your Cummins...$99.66$91.04 -
CUMMINS 3943933 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$25.62$23.40Delivering uncompromised strength for critical engine assemblies Engineered to exact Cummins OEM specifications for perfect compatibility Corrosion-resistant finish for extended service life under...$25.62$23.40 -
CUMMINS 3943885 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$8.54$7.80Engineered Precision for Enduring Strength Ensures Optimal Engine Assembly Integrity Durable Corrosion-Resistant Finish for Harsh Conditions 100% Genuine OEM Part from Cummins for Guaranteed...$8.54$7.80 -
CUMMINS 3943682 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$20.82$19.02Cummins 3943682 - HEX FLANGE HEAD CAPSCREW MINS3943682 Enter a world of authentic and high-quality outdoor equipment replacement parts with our Cummins 3943682 HEX FLANGE HEAD CAPSCREW. Our store...$20.82$19.02 -
CUMMINS 3943157 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$394.59$360.46Precision engineered fastening for uncompromised powertrain integrity Enhanced flange design delivers superior load distribution and vibration resistance Certified OEM Cummins component designed for...$394.59$360.46 -
CUMMINS 3942190 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$46.16$42.17Engineered for excellence, designed to last. Precision-machined hex flange head ensures secure fastening under the most demanding engine conditions. Corrosion-resistant finish to maintain strength...$46.16$42.17 -
CUMMINS 3941981 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$3.80$3.48Engineered to secure critical assemblies with uncompromising strength and precision Designed to resist vibration and corrosion for extended service life in demanding environments Certified OEM...$3.80$3.48 -
CUMMINS 3941976 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$25.27$23.09Cummins 3941976 - HEX FLANGE HEAD CAPSCREW MINS3941976 Discover the reliability of Cummins brand with the 3941976 - HEX FLANGE HEAD CAPSCREW, available at our online store under the SKU...$25.27$23.09 -
CUMMINS 3938036 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$5.32$4.86Precision engineered for uncompromising strength and durability Corrosion-resistant hex flange head design ensures secure fastening under extreme conditions Optimized to maintain engine integrity...$5.32$4.86 -
CUMMINS 3937692 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$22.05$20.14Precision-engineered fastening for uncompromising durability and safety Corrosion-resistant flange head design to maintain secure connections under stress 100% OEM authentic Cummins component,...$22.05$20.14 -
CUMMINS 3937434 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$36.90$33.71Precision engineered fastening for uncompromising durability and safety. Hex flange design ensures optimal torque distribution and vibration resistance. Manufactured as a Genuine OEM part by Cummins...$36.90$33.71 -
CUMMINS 3937181 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$19.55$17.86Precision engineered to power your Cummins systems with dependable strength Corrosion-resistant hex flange head design for optimal fastening and vibration control Crafted to exact OEM...$19.55$17.86 -
CUMMINS 3936996 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$160.44$146.56Precision engineered fastening excellence for uncompromised power. Robust hex flange design delivers exceptional torque retention and vibration resistance. Manufactured to OEM specifications for...$160.44$146.56