Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Thermoplastic Rubber casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 3-1/2” wheel: 4-5/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height; 6” wheel: 7-1/8” mounting height. BulletPoint2 : Weight Capacity: 3": 210 lbs Capacity/Caster, 3.5": 230 lbs Capacity/Caster, 4": 250 lbs Capacity/Caster, and 5" & 6": 300 lbs Capacity/Caster BulletPoint3 : All casters feature a 1/2” diameter (13 TPI x 1-1/2”) threaded stem. Threaded stems can be difficult to measure. Service Caster recommends having existing threads checked on a thread gauge to determine correct thread size before ordering. Don't see the size you need? No problem! Call us or message us by clicking the blue Service Caster Corporation hyperlink underneath the buy or add to cart button and then clicking the ask a question button. BulletPoint4 : Brake options include a top lock brake (TLB), a total lock brake (TTL), or a posi lock brake (PLB). The top lock brake (TLB) and the posi lock brake (PLB) places a positive locking force against the wheel tread locking the wheel only. The total lock brake (TTL) also places a positive locking force against the wheel tread, but the total lock brake (TTL) simultaneously locks the wheel and the swivel for a complete stationary position. BulletPoint5 : Find other wheel materials, sizes and all Service Caster products at our Amazon Storefront. Click on the “by Service Caster” link above the main title on any Service Caster page listing. BulletPoint6 : Matte Black Finish Capacity : 120 pounds Color : Swivel - Total Lock Brake - Gray CustomerPackageType : Standard Packaging ExteriorFinish : High-Carbon Steel ExternallyAssignedProductIdentifier1 : 670533929682 ExternallyAssignedProductIdentifier10 : 0940356018109 ExternallyAssignedProductIdentifier11 : 00034238236184 ExternallyAssignedProductIdentifier12 : 10034238236181 ExternallyAssignedProductIdentifier2 : 0670533929682 ExternallyAssignedProductIdentifier3 : 00769433425490 ExternallyAssignedProductIdentifier4 : 014445223184 ExternallyAssignedProductIdentifier5 : 034238236184 ExternallyAssignedProductIdentifier6 : 0012303243206 ExternallyAssignedProductIdentifier7 : 0034238236184 ExternallyAssignedProductIdentifier8 : 0014445223184 ExternallyAssignedProductIdentifier9 : 0640206370653 IncludedComponents : 5 x Casters 5 x 7/16" x 7/8" Stems 5 x 3/8" x 7/8" Stems ItemName : Thermoplastic Rubber Swivel Threaded Stem Caster - 4" x 1.25" Gray Wheel and 1/2" Stem & Total Locking Brake - 250 lbs Capacity/Caster - Service Caster Brand ItemPackageDimensions_Height : 8.89 centimeters ItemPackageDimensions_Length : 20.574 centimeters ItemPackageDimensions_Width : 20.32 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : stem-casters LoadCapacity : 250.0 pounds Manufacturer : Service Caster Material : Thermoplastic Rubber Tread on Polyolefin Core Material1 : Rubber Material2 : Stainless Steel Material3 : Steel ModelNumber : Series #20 MountingType : Plate Mount NumberOfItems : 1 PartNumber : SCC-TSTTL20S414-TPRB-121315 PitchCircleDiameter : 8 millimeters ProductDescription : Listing is for one (1) Service Caster Series #20 swivel caster with a 4" diameter by 1-1/4" wide thermoplastic rubber wheel and a 1/2" threaded stem with total lock brake capable of supporting 250 lbs./caster.When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 thermoplastic rubber casters. The Service Caster Series #20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. The zinc plated finish provides durability under any condition, and the soft, quiet and non-marking thermoplastic rubber wheels perform especially well on hard surfaces such as concrete, tile, and wood. They are resistant to water, oil, and grease and will keep you safely moving forward. Mounting options include top plate, bolt hole and standard and metric threaded stem sizes. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2019-10-04T14:54:37.941Z Size : 4" Wheel Style : For Carpeting SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Multi-Surface UnitCount : 5 WebsiteShippingWeight : 1.75 pounds