Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Nylon casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height. BulletPoint2 : Weight Capacity: 3", 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 : Swivel - No Brake - White CompatibleWithVehicleType : Bicycle ExternallyAssignedProductIdentifier1 : 670533913056 ExternallyAssignedProductIdentifier2 : 0670533913056 IncludedComponents : 1 ItemName : Stainless Steel Nylon Swivel Threaded Stem Caster w/4" x 1.25" White Wheel and 3/8" Stem - 300 lbs Capacity/Caster - Service Caster Brand ItemPackageDimensions_Height : 18.6 centimeters ItemPackageDimensions_Length : 12.7 centimeters ItemPackageDimensions_Width : 16.8 centimeters ItemPackageQuantity : 1 ItemShape : 2 Swivel & 2 Rigid ItemTypeKeyword : stem-casters LoadCapacity : 300.0 pounds Manufacturer : Service Caster Material : Nylon Material1 : Polypropylene Material2 : Polyurethane Material3 : Polyolefin ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 1 PartNumber : SCC-SSTS20S414-NYS-381615 Pattern : 1 Swivel PitchCircleDiameter : 150 millimeters ProductDescription : Listing is for one (1) Service Caster Series #20 stainless steel swivel caster with a 4" diameter by 1-1/4" wide nylon wheel and a 3/8" threaded stem capable of supporting 300 lbs./caster.When searching for a reliable and durable solution to your caster needs, consider Service Caster Series 20 threaded stem nylon wheel 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 nylon wheels provide very low rolling resistance, show a high resistance to many aggressive substances, and are maintenance free under normal operating conditions. Not only are they resistant to most chemicals and oils, but they will be sure to keep you safely moving forward. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2019-07-31T20:34:27.476Z Size : 4" Wheel Style : Without Brakes SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 UnspscCode : 31162702 WebsiteShippingWeight : 1.55 pounds