Frequently Asked Questions

We are open Monday through Friday, 8:00AM to 5:00PM EST.

Customer support is not available on weekends or major holidays. You can find quick answers to commonly asked questions below:

Custom Parts & Services

Does Harman offer Custom product capabilities?

+ -

Harman Corp offers more than 50 years of experience providing custom dip molding design and manufacturing, offering unique and functional parts that meet our customers needs. We offer low tooling costs, short lead times on all of our Custom Dip products - all of which are made in USA.

Read more about our Custom Dip Molding services.

How long does Harman take to make Custom Products?

+ -

Turnaround times for most custom parts are 7-10 business days. To ensure customers get their custom caps or plugs turned around quickly as possible, we also offer expedited molding, upon request.

What’s the Minimum Order Quantity on Custom Products?

+ -

In order to place a custom order, we require a minimum of 1,000 parts per order. There is no max order quantity.

Does Harman Offer Any Other Services?

+ -

We offer the following secondary services on all plastic caps, plastic plugs and plastic grips:

Payments & Ordering

What are Harman’s Payment Terms?

+ -

Harman accepts Net 30 and all major credit cards.

What are Harman’s Lead Times for Standard Parts?

+ -

This depends on the part, color, length and machine it runs on. Call us at 248-651-4477 to find out the lead times for your specific job.

What is Harman’s Minimum Order Quantity for Standard Parts?

+ -

Depends on the part. Call us at 248-651-4477 to find out the minimum order quantity for your next need.

Can I set-up Credit Terms with Harman Corp?

+ -

Yes. If you require credit terms, email us at and we will can send out a credit application.

Colors & Materials

How many standard colors does Harman offer?

+ -

Our plastic caps, plastic plugs and plastic grips come in the following eight standard colors: Black, Gray, Blue, Green, Yellow, Orange, Red and White.

Learn more about Harman‘s Vinyl Dip Molding colors.

Can Harman Corp color match?

+ -

Yes, Harman Corp can match most colors our customers provide.

Learn more about Harman‘s Vinyl Dip Molding colors.

What Materials does Harman use to produce products?

+ -

At Harman Corp, the majority of our plastic caps, plastic grips and plastic plugs are made with silicone or flexible vinyl PVC plastic.

How many sizes does Harman offer on products?

+ -

Any size, any length. No matter how custom the job, we can create a part that matches your specific requirements.

What is Prop 65 and how does it pertain to me?

+ -

In order to meet the current regulations from the CPSC, EU, CERHR, CIR and CDC, Harman can offer non-phthalate grips, caps and plugs to meet your company’s specification.

Learn more about Harman‘s Non-Phthalate Flexible PVC products.

Shipping & Returns

What is Harman Corp’s Return Policy?

+ -

Any order placed from Harman must be shipped back within 30 days of the original purchase. Customer must call Harman’s office to set-up authorization for return. All returns are subject to a restocking fee up to 35%. Shipping cost will be fulfilled by purchaser.

Where do Harman’s products ship from?

+ -

When you order from Harman Corporation, our products ship from Rochester, MI.

Which shipping carriers does Harman use?

+ -

Harman uses UPS and FedEx for ground shipments. Check the map below to see how many business days your ground order will be in transit.

Harman Corp Shipping Map

Contact Us

Have a question not answered above?

During business hours (M–F, 8AM–5PM ET), please call us at 248-651-4477. You also have the option to Live Chat by clicking the Live Chat on the right side of our website. After business hours, click here to email us. A representative will respond promptly the following business day.