Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Hard 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. BulletPoint2 : Weight Capacity: 3": 275 lbs Capacity/Caster; 3.5": 285 lbs Capacity/Caster; 4" and 5": 300 lbs Capacity/Caster BulletPoint3 : All casters feature a 3/8” diameter (16 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) or a total lock brake (TTL). The top lock brake (TLB) 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. Color : 4 Swivel - No Brakes - Black ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 670533901503 ExternallyAssignedProductIdentifier2 : 0670533901503 FdaDeviceClassification : iv FdaIndicationOfUse : otc_and_rx FdaInstructionsForUseType : consumer FdaLabelType : consumer IncludedComponents : 4* 1/2"-13 Hex Nuts ItemName : Hard Rubber Swivel Threaded Stem Caster Set of 4 w/4" x 1.25" Black Wheels and 3/8" Stems - Includes 4 Swivel - 1200 lbs Total Capacity - Service Caster Brand ItemPackageDimensions_Height : 20.4978 centimeters ItemPackageDimensions_Length : 10.6934 centimeters ItemPackageDimensions_Width : 13.0048 centimeters ItemPackageQuantity : 4 ItemTypeKeyword : stem-casters LoadCapacity : 300.0 pounds Manufacturer : Service Caster Material : Rubber Material1 : Acrylonitrile Butadiene Styrene (ABS) Material2 : Stainless Steel ModelName : Polyurethane Tread on Polyolefin Core ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 4 PartNumber : SCC-TS20S414-HRS-381615-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #20 swivel casters, four (4) swivel 3/8" threaded stem casters with 4” diameter by 1-1/4” wide hard rubber wheels. Supports a total weight of 1,200lbs (300lbs/per caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 hard rubber casters. The Service Caster Series #20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. The hard rubber wheels not only provide higher load capacities and impact resistance than comparable wheels, but are also resistant to most chemicals and oils. Mounting options include top plate, bolt hole and standard and metric threaded stem sizes. All rolling on a finely crafted ball bearing design and zinc plated finish that provides durability under any condition and keeps you safely moving forward. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2020-08-06T19:14:29.107Z Size : 4" Wheel Style : 3" casters*4 + hex nuts SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 UnspscCode : 31162702 WebsiteShippingWeight : 7 pounds