FAQs

Stocking Items (A, B, C items) 
Open lines on orders for stocked items may be modified or canceled prior to the line item on the order being released and scheduled for shipment. 

Made to Order Part Numbers (MTO, “M”, “D” items)
Open lines on orders for Made to Order (MTO) line items (also known as “M” make or "D" items) cannot be changed nor canceled after an order is placed.
*Exceptions can be made with approval from demand planning if the product has not begun production. 

Non-stocking Part Numbers (“N” items) 
Open lines on orders for Non-stocking (“N” items) cannot be changed nor canceled after an order is placed. *Exceptions can be made with approval from demand/distribution planning if the product is not available at the location the line is sourced on, and if product is not in route to the line’s source location. 

Other Information

• Part number/SKU classification “Class” for the A, B, C, D code is shown on all quotations. Customers are also able to inquire with their Atkore Customer Service Representative or their Agent for clarification on item classifications.
• Atkore reserves the right to update A, B, C, D (M/N) classifications periodically. Typically this is done semi-annually in October and April. 
• Please refer to our return policy for any questions on returns and refunds.

Atkore accepts returns on metal framing products provided the return meets the following criteria: 

• Product must be in good condition (undamaged, prime material, clean) AND in original bundle banding or original packaging.
• All fittings must be in full box/bag quantities. 
• Customer pays return freight to Atkore’s desired location. 
• Customer will be billed a 20% restocking fee.
• “Stocked items” are returnable. “D items/Make-To-Order items” are not returnable. 
• Returns are accepted on product purchased within the last 12 months. 
• Sales Agents enter returns in the Salesforce.com system. Returns are approved/rejected in Salesforce.com.
• Upon receipt of returned items Atkore will inspect the product to insure it meets the criteria above. Product in poor condition will not receive credit.

Reference our Beam Load Calculation Guide.

96195
 

The following torque values shall be used for Power-Strut channel nuts and bolts.

Bolt Size	Design (ft.-lbs.)	Maximum (ft.-lbs.)
1/4" – 20	6	7
5/16” - 18	11	15
3/8” – 16	19	25
7/16” - 14	35	43
1/2" – 13	50	70
5/8” – 11	100	125
3/4” – 10	125	135
7/8” - 9	125	135

Rule of Thumb: From a snug tight condition, a full turn of the bolt will approximately result in the Design Torque Value. However, a torque wrench should be used to verify final torque meets the above requirements.
 

Reference our CSI MasterSpec (05430).
 

Power-Strut is a member of the Metal Framing Manufacturer’s Association (MFMA) and actively participated in writing the Metal Framing Standards Publication. The current edition of this document is MFMA-4. 

Power-Strut meets or exceeds the requirements of MFMA-4.

POWER-STRUT & MSS SP-58, SP-69 & SP-89

Power-Strut actively participates on MSS Committee 403, which is responsible for Standard Practices SP-58, SP-69 & SP-89. 

In general, Power-Strut products conform to the requirements of MSS SP-58, SP-69 & SP-89 where applicable to the objectives of these standards. Power-Strut channel, threaded rod, pipe clamps and beam clamps conform to SP-58, SP-69 & SP-89. By definition, MSS considers continuous concrete inserts devices to which hanger assemblies attach. Therefore, MSS does not have requirements for concrete inserts. However, the material from which Power-Strut concrete inserts are made do conform to MSS SP-58, SP-69 & SP-89.

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Painting Galvanized (PAGL or HDG) Steel

Painting galvanized steel should follow the procedures established by the Steel Structures Painting Council (SSPC). The recommended procedures and specifications to paint galvanized steel are: 

• SSPC Good Painting Practice, Volume 1, Chapter 22, “Painting Galvanized Steel” 
• SSPC-SP1, “Surface Preparation Specification No. 1 – Solvent Cleaning” 
• SSPC-Paint 27, “Paint Specification No. 27, Basic Zinc Chromate-Vinyl Butyral Wash Primer” 

Power-Strut Channel with the Power-Green is a high quality finish similar to an automotive finish. The best method to topcoat factory painted channel is by using a liquid or powder coat finish.  Both of these are a thermoset finish  and have excellent adhesion and performance.

If the topcoat will be an air-dry paint, the following procedure is suggested:

1. Lightly tack sand the surfaces to be painted. Take the gloss off – do not remove down to metal.
2. Clean off the surfaces and let dry, if required (e.g. if cleaned via damp rag)
3. Apply Air-Dry Paint (listed in order of best probable performance)
   • Acrylic Urethane
   • Polyester
   • Alkyd

An air-dry paint used for to over-coated factory painted channel has not been tested. The above procedure is a suggested method for applying an air-dry topcoat. Test data is not available to indicate performance of this type of topcoat.

Power-Strut uses MSS SP-69, Section 8.4 for set screw recommended torque.
Torque Values are as follows:

Thread Size - UNC (in.)	Torque (in.-lbs.)
1/4	40
3/8	60
1/2	125
5/8	250
3/4	400
7/8	665

 To avoid damage to clamps, do not over tighten set screws.